{"product_id":"hkstudie-exhaust-bmw-m3-m4-g80-g81-g82-comp-tudie-ex001","title":"HKSTUDIE EXHAUST BMW M3 M4 G80 G81 G82 COMP HKSTUDIE-EX001","description":"\u003cdiv class=\"swell-block-fullWide pc-py-40 sp-py-40 alignfull\"\u003e\n\u003cdiv class=\"swell-block-fullWide__inner l-container\"\u003e\n\u003cfigure class=\"wp-block-image size-full is-resized\"\u003e\u003cimg srcset=\"https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/ex001-g808182comp.png?v=1749802926 700w, https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/ex001-g808182comp-300x54.png?v=1749802926 300w\" sizes=\"(max-width: 700px) 100vw, 700px\" data-srcset=\"https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/ex001-g808182comp.png?v=1749802926 700w, https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/ex001-g808182comp-300x54.png?v=1749802926 300w\" class=\"wp-image-2019 lazyloaded\" alt=\"\" data-src=\"https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/ex001-g808182comp.png\" src=\"https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/ex001-g808182comp.png\" height=\"125\" width=\"700\" decoding=\"async\"\u003e\u003c\/figure\u003e\n\u003cp class=\"wp-block-paragraph\"\u003e　\u003c\/p\u003e\n\u003ch2 class=\"wp-block-heading is-style-section_ttl\"\u003e–\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eFEATURES\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e–\u003c\/h2\u003e\n\u003cp class=\"is-style-balloon_box wp-block-paragraph\"\u003e\u003cspan class=\"swl-fz u-fz-l\"\u003e\u003cstrong\u003eA one-of-a-kind tail tip design\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"wp-block-paragraph\"\u003eA specially designed tail tips paid homage to the legendary “BMW 3.0 CSL“. It has a thick-walled slash-cut tail tips, emphasizing the texture of the edges, and the surface is blasted to express a dull glossy finish. Features a sound deadening inner slits to create a one-of-a-kind tail tip design.\u003c\/p\u003e\n\u003cp class=\"is-style-balloon_box wp-block-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"swl-fz u-fz-l\"\u003eGentle yet powerful sound\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"wp-block-paragraph\"\u003eThe OEM exhaust of the G8X generation M produces a sporty sound that is distinctive of the M series. Since replacing only the main muffler does not produce a significant change in sound, the HKSTUDIE exhaust features a layout that deletes the middle muffler. The unique sound tuning based on frequency analysis has achieved gentle yet powerful sound.\u003c\/p\u003e\n\u003cp class=\"is-style-balloon_box wp-block-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"swl-fz u-fz-l\"\u003eCompliant with Japan’s vehicle inspection regulations\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"wp-block-paragraph\"\u003eAlthough it gives off a powerful sound, it still meets the strict sound regulation of UN ECE-R51.03 Phase 2. This products can be used safely for daily use and is compliant with Japan’s vehicle inspection regulations.\u003c\/p\u003e\n\u003cp class=\"is-style-balloon_box wp-block-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"swl-fz u-fz-l\"\u003eReduce exhaust pressure by up to 35％\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"wp-block-paragraph\"\u003eOptimized pipe layout and a main muffler without restrictions reduce exhaust pressure by up to 35% compared to the OEM muffler. This results in increased boost responsiveness and higher output at high RPM range, and increases power output by up to 5kw and torque by up to 15Nm.\u003c\/p\u003e\n\u003cp class=\"is-style-balloon_box wp-block-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"swl-fz u-fz-l\"\u003eA 2-year or 30,000 km product warranty\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"wp-block-paragraph\"\u003eBy manufacturing in-house at our factory in Japan and conducting strict quality control, we are able to offer a 2-year or 30,000 km product warranty from the time of purchase.\u003c\/p\u003e\n\u003cp class=\"wp-block-paragraph\"\u003e　\u003c\/p\u003e\n\u003ch2 class=\"wp-block-heading is-style-section_ttl\"\u003e– CONFIGURATION –\u003c\/h2\u003e\n\u003cfigure class=\"wp-block-gallery has-nested-images columns-default is-cropped u-lb-off wp-block-gallery-2 is-layout-flex wp-block-gallery-is-layout-flex\"\u003e\n\u003cfigure class=\"wp-block-image size-full\"\u003e\u003cimg srcset=\"https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001-component.png?v=1721367109 1171w, https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001-component-300x176.png?v=1721367109 300w, https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001-component-1024x602.png?v=1721367109 1024w, https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001-component-768x451.png?v=1721367109 768w\" sizes=\"(max-width: 1171px) 100vw, 1171px\" data-srcset=\"https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001-component.png?v=1721367109 1171w, https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001-component-300x176.png?v=1721367109 300w, https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001-component-1024x602.png?v=1721367109 1024w, https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001-component-768x451.png?v=1721367109 768w\" class=\"wp-image-1569 lazyloaded\" alt=\"\" data-src=\"https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001-component.png\" src=\"https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001-component.png\" data-id=\"1569\" height=\"688\" width=\"1171\" decoding=\"async\"\u003e\u003c\/figure\u003e\n\u003c\/figure\u003e\n\u003cfigure class=\"wp-block-table\"\u003e\n\u003ctable class=\"has-fixed-layout\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCertification Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eJARI10240006P\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMain Material\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSUS304\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTail Tips Outer Diameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e101.6mm (Quad Exit Style)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMain Pipe Diameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e70mm x2⇒60.5mm x2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSound Level (OEM)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e94dB (Idle: 63dB)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSound Level (HKSTUDIE)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e97dB (Idle: 64dB)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMinimum Ground Clearance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e135mm (#2 Mid Pipe)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003cp class=\"wp-block-paragraph\"\u003e　\u003c\/p\u003e\n\u003ch2 class=\"wp-block-heading is-style-section_ttl\"\u003e– PERFORMANCE –\u003c\/h2\u003e\n\u003cp class=\"is-style-balloon_box wp-block-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"swl-fz u-fz-l\"\u003e35% reduction in exhaust resistance (max.)\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"wp-block-paragraph\"\u003eBy optimizing the layout, adopting a straight pipe without squeezing and the internal structure of the main muffler without restrictions, exhaust resistance is significantly reduced compared to the OEM exhaust as shown in the graph below as a result of in-house testing.\u003c\/p\u003e\n\u003cp class=\"wp-block-paragraph\"\u003e\u003cspan class=\"swl-inline-icon\" aria-hidden=\"true\" data-id=\"0\" data-icon=\"LsCaretRight\"\u003e \u003c\/span\u003eFlow Bench Testing\u003c\/p\u003e\n\u003cfigure class=\"wp-block-image size-large\"\u003e\u003cimg srcset=\"https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001_Flow_bench-1024x668.png?v=1721375734 1024w, https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001_Flow_bench-300x196.png?v=1721375734 300w, https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001_Flow_bench-768x501.png?v=1721375734 768w, https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001_Flow_bench.png?v=1721375734 1172w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" data-srcset=\"https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001_Flow_bench-1024x668.png?v=1721375734 1024w, https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001_Flow_bench-300x196.png?v=1721375734 300w, https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001_Flow_bench-768x501.png?v=1721375734 768w, https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001_Flow_bench.png?v=1721375734 1172w\" class=\"wp-image-1571 lazyloaded\" alt=\"\" data-src=\"https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001_Flow_bench-1024x668.png\" src=\"https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001_Flow_bench-1024x668.png\" height=\"668\" width=\"1024\" decoding=\"async\"\u003e\u003c\/figure\u003e\n\u003cp class=\"wp-block-paragraph\"\u003e　\u003c\/p\u003e\n\u003cp class=\"wp-block-paragraph\"\u003e\u003cspan class=\"swl-inline-icon\" aria-hidden=\"true\" data-id=\"0\" data-icon=\"LsCaretRight\"\u003e \u003c\/span\u003ePower\/Torque Curve\u003c\/p\u003e\n\u003cfigure class=\"wp-block-image size-large\"\u003e\u003cimg srcset=\"https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001_Powergraph-1024x668.png?v=1721375724 1024w, https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001_Powergraph-300x196.png?v=1721375724 300w, https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001_Powergraph-768x501.png?v=1721375724 768w, https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001_Powergraph.png?v=1721375724 1171w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" data-srcset=\"https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001_Powergraph-1024x668.png?v=1721375724 1024w, https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001_Powergraph-300x196.png?v=1721375724 300w, https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001_Powergraph-768x501.png?v=1721375724 768w, https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001_Powergraph.png?v=1721375724 1171w\" class=\"wp-image-1572 lazyloaded\" alt=\"\" data-src=\"https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001_Powergraph-1024x668.png\" src=\"https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001_Powergraph-1024x668.png\" height=\"668\" width=\"1024\" decoding=\"async\"\u003e\u003c\/figure\u003e\n\u003cp class=\"wp-block-paragraph\"\u003e　\u003c\/p\u003e\n\u003cp class=\"wp-block-paragraph\"\u003e　\u003c\/p\u003e\n\u003cp class=\"is-style-balloon_box wp-block-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"swl-fz u-fz-l\"\u003eIncreases output ＋5kw and torque +15Nm\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"wp-block-paragraph\"\u003eLowering exhaust pressure leads to higher engine power output. As shown in the figure below, the response of the turbo boost is improved in the low rpm range, and torque is increased by up to 15Nm. As for power output, the better exhaust flow leads to more power at higher engine speeds, increasing the power by up to 5kw. All tests at our headquarters were conducted using vehicles in stock condition except for the exhaust system. The difference in power output between OEM and HKSTUDIE exhaust systems will widen further when the ECU is analyzed and tuned to increase power output.\u003c\/p\u003e\n\u003cfigure class=\"wp-block-gallery has-nested-images columns-default is-cropped u-lb-off wp-block-gallery-3 is-layout-flex wp-block-gallery-is-layout-flex\"\u003e\n\u003cfigure class=\"wp-block-image size-full\"\u003e\u003cimg srcset=\"https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/2HKSTUDIE-EX001_Torque_curve.png?v=1721375715 625w, https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/2HKSTUDIE-EX001_Torque_curve-161x300.png?v=1721375715 161w, https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/2HKSTUDIE-EX001_Torque_curve-548x1024.png?v=1721375715 548w\" sizes=\"(max-width: 625px) 100vw, 625px\" data-srcset=\"https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/2HKSTUDIE-EX001_Torque_curve.png?v=1721375715 625w, https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/2HKSTUDIE-EX001_Torque_curve-161x300.png?v=1721375715 161w, https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/2HKSTUDIE-EX001_Torque_curve-548x1024.png?v=1721375715 548w\" class=\"wp-image-1576 lazyloaded\" alt=\"\" data-src=\"https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/2HKSTUDIE-EX001_Torque_curve.png\" src=\"https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/2HKSTUDIE-EX001_Torque_curve.png\" data-id=\"1576\" height=\"1168\" width=\"625\" decoding=\"async\"\u003e\u003c\/figure\u003e\n\u003cfigure class=\"wp-block-image size-full\"\u003e\u003cimg srcset=\"https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/2HKSTUDIE-EX001_Power_curve.png?v=1721375700 534w, https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/2HKSTUDIE-EX001_Power_curve-142x300.png?v=1721375700 142w, https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/2HKSTUDIE-EX001_Power_curve-484x1024.png?v=1721375700 484w\" sizes=\"(max-width: 534px) 100vw, 534px\" data-srcset=\"https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/2HKSTUDIE-EX001_Power_curve.png?v=1721375700 534w, https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/2HKSTUDIE-EX001_Power_curve-142x300.png?v=1721375700 142w, https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/2HKSTUDIE-EX001_Power_curve-484x1024.png?v=1721375700 484w\" class=\"wp-image-1577 lazyloaded\" alt=\"\" data-src=\"https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/2HKSTUDIE-EX001_Power_curve.png\" src=\"https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/2HKSTUDIE-EX001_Power_curve.png\" data-id=\"1577\" height=\"1129\" width=\"534\" decoding=\"async\"\u003e\u003c\/figure\u003e\n\u003c\/figure\u003e\n\u003cp class=\"wp-block-paragraph\"\u003e　\u003c\/p\u003e\n\u003cp class=\"wp-block-paragraph\"\u003e\u003cspan class=\"swl-inline-icon\" aria-hidden=\"true\" data-id=\"0\" data-icon=\"LsCaretRight\"\u003e \u003c\/span\u003eSound Features\u003c\/p\u003e\n\u003cp class=\"is-style-balloon_box wp-block-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"swl-fz u-fz-l\"\u003eExhaust sound tuning based on frequency analysis\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"wp-block-paragraph\"\u003eGenerally, low-frequency noise below 100 Hz are said to be unpleasant and oppressive, and are described as drone sounds in the cabin of a car. HKSTUDIE produced various prototype exhausts and conducted sound frequency analysis.\u003c\/p\u003e\n\u003cp class=\"wp-block-paragraph\"\u003eGeneral exhaust with internally constructed mufflers will have a marked drone sound (see the graph below around 100 Hz), while the OEM exhaust successfully muffles the low-frequency sound.\u003c\/p\u003e\n\u003cp class=\"wp-block-paragraph\"\u003eThis drone sound is especially noticeable when cruising at 80 to 100 km\/h on highways. HKSTUDIE exhaust has newly designed the inside of the muffler silencer to suppress the muffled sound and to emphasize the mid-frequency sound above 200Hz, which is considered to be a sporty sound.\u003c\/p\u003e\n\u003cp class=\"wp-block-paragraph\"\u003eThanks to its gentle sound during cruising, the driver and passengers will not feel any discomfort, and once the driver steps on the gas pedal, they will enjoy the powerful sound.\u003c\/p\u003e\n\u003cp class=\"wp-block-paragraph\"\u003e　\u003c\/p\u003e\n\u003cfigure class=\"wp-block-image size-large\"\u003e\u003cimg srcset=\"https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001_sound_spectrum-1024x668.png?v=1721375686 1024w, https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001_sound_spectrum-300x196.png?v=1721375686 300w, https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001_sound_spectrum-768x501.png?v=1721375686 768w, https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001_sound_spectrum.png?v=1721375686 1171w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" data-srcset=\"https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001_sound_spectrum-1024x668.png?v=1721375686 1024w, https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001_sound_spectrum-300x196.png?v=1721375686 300w, https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001_sound_spectrum-768x501.png?v=1721375686 768w, https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001_sound_spectrum.png?v=1721375686 1171w\" class=\"wp-image-1579 lazyloaded\" alt=\"\" data-src=\"https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001_sound_spectrum-1024x668.png\" src=\"https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001_sound_spectrum-1024x668.png\" height=\"668\" width=\"1024\" decoding=\"async\"\u003e\u003c\/figure\u003e\n\u003cp class=\"wp-block-paragraph\"\u003e　\u003c\/p\u003e\n\u003cp class=\"is-style-balloon_box wp-block-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"swl-fz u-fz-l\"\u003eExhaust Sound Level\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"wp-block-paragraph\"\u003eIn-house measurements of UN-ECE R51, a rough guide to the volume of an exhaust system, are shown below. It is a comparison of three different types of mufflers: a stock exhaust, a prototype of a general muffler, and an HKSTUDIE exhaust.\u003c\/p\u003e\n\u003cfigure class=\"wp-block-flexible-table-block-table is-content-justification-left is-scroll-on-mobile\"\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd rowspan=\"2\"\u003edB(A)\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003eLeft\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003eRight\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePartial Throttle\u003c\/td\u003e\n\u003ctd\u003eThrottle Off\u003c\/td\u003e\n\u003ctd\u003ePartial Throttle\u003c\/td\u003e\n\u003ctd\u003eThrottle Off\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOEM\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e85.9\u003c\/td\u003e\n\u003ctd\u003e93.7\u003c\/td\u003e\n\u003ctd\u003e89.0\u003c\/td\u003e\n\u003ctd\u003e94.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHKSTUDIE\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e88.5\u003c\/td\u003e\n\u003ctd\u003e95.8\u003c\/td\u003e\n\u003ctd\u003e92.2\u003c\/td\u003e\n\u003ctd\u003e96.6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eGeneral\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e84.6\u003c\/td\u003e\n\u003ctd\u003e92.6\u003c\/td\u003e\n\u003ctd\u003e87.0\u003c\/td\u003e\n\u003ctd\u003e92.6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003cp class=\"wp-block-paragraph\"\u003e　\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"swell-block-fullWide pc-py-20 sp-py-20 alignfull\"\u003e\n\u003cdiv class=\"swell-block-fullWide__inner l-container\"\u003e\n\u003cfigure class=\"wp-block-image size-full u-lb-off\"\u003e\u003cimg srcset=\"https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/ex001-g808182comp.png?v=1749802926 700w, https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/ex001-g808182comp-300x54.png?v=1749802926 300w\" sizes=\"(max-width: 700px) 100vw, 700px\" data-srcset=\"https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/ex001-g808182comp.png?v=1749802926 700w, https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/ex001-g808182comp-300x54.png?v=1749802926 300w\" class=\"wp-image-2019 ls-is-cached lazyloaded\" alt=\"\" data-src=\"https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/ex001-g808182comp.png\" src=\"https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/ex001-g808182comp.png\" height=\"125\" width=\"700\" decoding=\"async\"\u003e\u003c\/figure\u003e\n\u003cfigure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"\u003e\n\u003cdiv class=\"wp-block-embed__wrapper\"\u003e\u003ciframe class=\"lazyloaded\" data-src=\"https:\/\/www.youtube.com\/embed\/y5BDDdFIC-Q?feature=oembed\" height=\"281\" width=\"500\" title=\"Sound clip of HKSTUDIE EXHAUST for BMW G8X M3\u0026amp;M4\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003c\/figure\u003e\n\u003cp class=\"wp-block-paragraph\"\u003e　\u003c\/p\u003e\n\u003ch2 class=\"wp-block-heading is-style-section_ttl\"\u003e–\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eDETAILS\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e–\u003c\/h2\u003e\n\u003cdiv class=\"wp-block-media-text is-stacked-on-mobile\"\u003e\n\u003cfigure class=\"wp-block-media-text__media\"\u003e\u003cimg srcset=\"https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001-33-1024x682.jpg?v=1721372335 1024w, https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001-33-300x200.jpg?v=1721372335 300w, https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001-33-768x512.jpg?v=1721372335 768w, https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001-33-1536x1024.jpg?v=1721372335 1536w, https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001-33.jpg?v=1721372335 1958w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" data-srcset=\"https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001-33-1024x682.jpg?v=1721372335 1024w, https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001-33-300x200.jpg?v=1721372335 300w, https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001-33-768x512.jpg?v=1721372335 768w, https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001-33-1536x1024.jpg?v=1721372335 1536w, https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001-33.jpg?v=1721372335 1958w\" class=\"wp-image-1581 size-full lazyloaded\" alt=\"\" data-src=\"https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001-33-1024x682.jpg\" src=\"https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001-33-1024x682.jpg\" height=\"682\" width=\"1024\" decoding=\"async\"\u003e\u003c\/figure\u003e\n\u003cdiv class=\"wp-block-media-text__content\"\u003e\n\u003cp class=\"wp-block-paragraph\"\u003e\u003cspan class=\"swl-inline-icon\" aria-hidden=\"true\" data-id=\"0\" data-icon=\"LsCaretRight\"\u003e \u003c\/span\u003eExclusive tail tip design\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"wp-block-media-text is-stacked-on-mobile\"\u003e\n\u003cfigure class=\"wp-block-media-text__media\"\u003e\u003cimg srcset=\"https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001-32-1024x683.jpg?v=1721372359 1024w, https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001-32-300x200.jpg?v=1721372359 300w, https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001-32-768x512.jpg?v=1721372359 768w, https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001-32-1536x1024.jpg?v=1721372359 1536w, https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001-32-2048x1366.jpg?v=1721372359 2048w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" data-srcset=\"https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001-32-1024x683.jpg?v=1721372359 1024w, https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001-32-300x200.jpg?v=1721372359 300w, https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001-32-768x512.jpg?v=1721372359 768w, https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001-32-1536x1024.jpg?v=1721372359 1536w, https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001-32-2048x1366.jpg?v=1721372359 2048w\" class=\"wp-image-1582 size-full lazyloaded\" alt=\"\" data-src=\"https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001-32-1024x683.jpg\" src=\"https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001-32-1024x683.jpg\" height=\"683\" width=\"1024\" decoding=\"async\"\u003e\u003c\/figure\u003e\n\u003cdiv class=\"wp-block-media-text__content\"\u003e\n\u003cp class=\"wp-block-paragraph\"\u003e\u003cspan class=\"swl-inline-icon\" aria-hidden=\"true\" data-id=\"0\" data-icon=\"LsCaretRight\"\u003e \u003c\/span\u003eSound muffling inner slits\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"wp-block-media-text is-stacked-on-mobile\"\u003e\n\u003cfigure class=\"wp-block-media-text__media\"\u003e\u003cimg srcset=\"https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001-16-1024x683.jpg?v=1721372386 1024w, https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001-16-300x200.jpg?v=1721372386 300w, https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001-16-768x512.jpg?v=1721372386 768w, https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001-16-1536x1024.jpg?v=1721372386 1536w, https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001-16-2048x1365.jpg?v=1721372386 2048w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" data-srcset=\"https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001-16-1024x683.jpg?v=1721372386 1024w, https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001-16-300x200.jpg?v=1721372386 300w, https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001-16-768x512.jpg?v=1721372386 768w, https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001-16-1536x1024.jpg?v=1721372386 1536w, https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001-16-2048x1365.jpg?v=1721372386 2048w\" class=\"wp-image-1583 size-full lazyloaded\" alt=\"\" data-src=\"https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001-16-1024x683.jpg\" src=\"https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001-16-1024x683.jpg\" height=\"683\" width=\"1024\" decoding=\"async\"\u003e\u003c\/figure\u003e\n\u003cdiv class=\"wp-block-media-text__content\"\u003e\n\u003cp class=\"wp-block-paragraph\"\u003e\u003cspan class=\"swl-inline-icon\" aria-hidden=\"true\" data-id=\"0\" data-icon=\"LsCaretRight\"\u003e \u003c\/span\u003eHigh-quality exhaust flap reputed by auto manufacturers\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"wp-block-media-text is-stacked-on-mobile\"\u003e\n\u003cfigure class=\"wp-block-media-text__media\"\u003e\u003cimg srcset=\"https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001-19-1024x683.jpg?v=1721372406 1024w, https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001-19-300x200.jpg?v=1721372406 300w, https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001-19-768x512.jpg?v=1721372406 768w, https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001-19-1536x1024.jpg?v=1721372406 1536w, https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001-19-2048x1365.jpg?v=1721372406 2048w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" data-srcset=\"https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001-19-1024x683.jpg?v=1721372406 1024w, https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001-19-300x200.jpg?v=1721372406 300w, https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001-19-768x512.jpg?v=1721372406 768w, https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001-19-1536x1024.jpg?v=1721372406 1536w, https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001-19-2048x1365.jpg?v=1721372406 2048w\" class=\"wp-image-1584 size-full lazyloaded\" alt=\"\" data-src=\"https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001-19-1024x683.jpg\" src=\"https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001-19-1024x683.jpg\" height=\"683\" width=\"1024\" decoding=\"async\"\u003e\u003c\/figure\u003e\n\u003cdiv class=\"wp-block-media-text__content\"\u003e\n\u003cp class=\"wp-block-paragraph\"\u003e\u003cspan class=\"swl-inline-icon\" aria-hidden=\"true\" data-id=\"0\" data-icon=\"LsCaretRight\"\u003e \u003c\/span\u003eR51-03 certification plate\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"wp-block-media-text is-stacked-on-mobile\"\u003e\n\u003cfigure class=\"wp-block-media-text__media\"\u003e\u003cimg srcset=\"https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001-6-1024x683.jpg?v=1721372488 1024w, https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001-6-300x200.jpg?v=1721372488 300w, https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001-6-768x512.jpg?v=1721372488 768w, https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001-6-1536x1024.jpg?v=1721372488 1536w, https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001-6-2048x1365.jpg?v=1721372488 2048w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" data-srcset=\"https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001-6-1024x683.jpg?v=1721372488 1024w, https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001-6-300x200.jpg?v=1721372488 300w, https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001-6-768x512.jpg?v=1721372488 768w, https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001-6-1536x1024.jpg?v=1721372488 1536w, https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001-6-2048x1365.jpg?v=1721372488 2048w\" class=\"wp-image-1585 size-full lazyloaded\" alt=\"\" data-src=\"https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001-6-1024x683.jpg\" src=\"https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001-6-1024x683.jpg\" height=\"683\" width=\"1024\" decoding=\"async\"\u003e\u003c\/figure\u003e\n\u003cdiv class=\"wp-block-media-text__content\"\u003e\n\u003cp class=\"wp-block-paragraph\"\u003e\u003cspan class=\"swl-inline-icon\" aria-hidden=\"true\" data-id=\"0\" data-icon=\"LsCaretRight\"\u003e \u003c\/span\u003eWelding by very skilled Japanese “Takumi” craftsman\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"wp-block-media-text is-stacked-on-mobile\"\u003e\n\u003cfigure class=\"wp-block-media-text__media\"\u003e\u003cimg srcset=\"https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001-7-1024x683.jpg?v=1721372508 1024w, https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001-7-300x200.jpg?v=1721372508 300w, https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001-7-768x512.jpg?v=1721372508 768w, https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001-7-1536x1024.jpg?v=1721372508 1536w, https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001-7-2048x1365.jpg?v=1721372508 2048w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" data-srcset=\"https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001-7-1024x683.jpg?v=1721372508 1024w, https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001-7-300x200.jpg?v=1721372508 300w, https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001-7-768x512.jpg?v=1721372508 768w, https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001-7-1536x1024.jpg?v=1721372508 1536w, https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001-7-2048x1365.jpg?v=1721372508 2048w\" class=\"wp-image-1586 size-full lazyloaded\" alt=\"\" data-src=\"https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001-7-1024x683.jpg\" src=\"https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001-7-1024x683.jpg\" height=\"683\" width=\"1024\" decoding=\"async\"\u003e\u003c\/figure\u003e\n\u003cdiv class=\"wp-block-media-text__content\"\u003e\n\u003cp class=\"wp-block-paragraph\"\u003e　\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp class=\"wp-block-paragraph\"\u003e　\u003c\/p\u003e\n\u003ch2 class=\"wp-block-heading is-style-section_ttl\"\u003e–\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eREMARKS\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e–\u003c\/h2\u003e\n\u003cp class=\"wp-block-paragraph\"\u003e\u003cspan class=\"swl-inline-icon\" aria-hidden=\"true\" data-id=\"0\" data-icon=\"LsCaretRight\"\u003e \u003c\/span\u003e\u003cstrong\u003eJapanese Exhaust Noise Regulation\u003c\/strong\u003e\u003c\/p\u003e\n\u003cfigure class=\"wp-block-image size-large\"\u003e\u003cimg srcset=\"https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001-noisetest-1024x594.png?v=1721375669 1024w, https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001-noisetest-300x174.png?v=1721375669 300w, https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001-noisetest-768x446.png?v=1721375669 768w, https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001-noisetest-1536x891.png?v=1721375669 1536w, https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001-noisetest.png?v=1721375669 1553w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" data-srcset=\"https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001-noisetest-1024x594.png?v=1721375669 1024w, https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001-noisetest-300x174.png?v=1721375669 300w, https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001-noisetest-768x446.png?v=1721375669 768w, https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001-noisetest-1536x891.png?v=1721375669 1536w, https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001-noisetest.png?v=1721375669 1553w\" class=\"wp-image-1588 lazyloaded\" alt=\"\" data-src=\"https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001-noisetest-1024x594.png?v=1721372793\" src=\"https:\/\/www.hkstudie.com\/cms\/wp-content\/uploads\/2024\/07\/HKSTUDIE-EX001-noisetest-1024x594.png?v=1721372793\" height=\"594\" width=\"1024\" decoding=\"async\"\u003e\u003c\/figure\u003e\n\u003cp class=\"wp-block-paragraph\"\u003eThis product has been inspected and certified for UN-ECE R51.03. The vehicles equipped with the exhaust certified by R51.03 is applied the Japanese noise regulation of year 2016, and the noise value indicated on the performance confirmation label shall be the standard value, and the standard value + 5dB shall be the regulation value. (In the case of this product, the noise value indicated on the performance confirmation plate is 97 dB, so the Japanese exhaust noise regulation limit value is 102 dB)\u003c\/p\u003e\n\u003cp class=\"wp-block-paragraph\"\u003eThe measurement RPM for exhaust noise is taken at 3,750 rpm, which is the RPM indicated in the remarks column of the vehicle inspection certificate. The measurement point is as described in R51-03. As shown in the figure above, the microphone should be placed at a position 0.5 m away from and at a 45-degree angle to the furthest outside exhaust tip from the longitudinal centerline of the vehicle.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"HKS","offers":[{"title":"Default Title","offer_id":48480970899556,"sku":"HKSTUDIE-EX001","price":9999.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0745\/6260\/1060\/files\/HKSTUDIE-EX001-34-1024x683.jpg?v=1780025479","url":"https:\/\/kyp.com.au\/products\/hkstudie-exhaust-bmw-m3-m4-g80-g81-g82-comp-tudie-ex001","provider":"KYP Performance House","version":"1.0","type":"link"}