Upgrade your BMW M3 & M4 (G80/G81/G82/G83 LCI) with the HKSTUDIE EXHAUST – code EX002 – engineered for performance, style, and compliance. This SUS304 stainless steel performance exhaust system delivers a refined yet aggressive tone, boosted power, and distinctive styling.

Key Features & Benefits:

• Application: BMW M3/M4 G80/G81/G82/G83 LCI models (S58B30A engine, 2024/7-onwards).

• Material: High-grade SUS304 stainless steel for durability and corrosion resistance.

• Sound: Balanced between quiet cruising and aggressive under full throttle, through precise frequency tuning and removal of restrictive secondary silencer layout. 

• Performance gains: Up to +8 kW (≈10.7 hp) and +28 Nm torque over stock exhaust setup thanks to optimized flow and reduced back pressure (up to 35% reduction). 

• Compliance: R51-03 noise regulation certified (phase 2) – approved for road use in Japan under the listed vehicle specification.

• Design: Unique dual slash-cut tailpipe ends inspired by the legendary BMW 3.0 CSL, featuring inner silts for sound suppression and a blasted finish for visual depth.

• Warranty: 2-year / 30,000 km product warranty from HKSTUDIE’s in-house factory in Japan. 

Why choose this exhaust system?
If you’re looking for a premium aftermarket exhaust for your BMW M3/M4 LCI that not only sounds great but maintains everyday usability, this HKSTUDIE system brings race-inspired flow, distinct design and tuning precision. Ideal for enthusiasts who want to retain comfort yet unlock the next level of performance and style.

Fitment & Compatibility:

• Vehicle: BMW M3 / M4 (G80/G81/G82/G83) LCI (Post-Facelift)

• Engine: S58B30A

• Part Code: HKSTUDIE-EX002

• Applicable Models: 3BA-32AY30 / 3BA-52AZ30 (as per manufacturer fitment list). 

Installation & Usage Notes:

• Designed to replace the full mid & main exhaust – ensures minimal restriction, maximum flow and optimal acoustic balance.

• Professional installation recommended; ensure correct clearance and factory mounting points are used.

• Depending on local regulations, additional tuning or ECU adjustment may be required for full optimisation.

• Note: Product specifications, sound levels and appearance may change without prior notice.

Shop with confidence:
HKSTUDIE products are crafted in Japan, subject to rigorous quality control and backed by official supply and warranty channels. With this EX002 system, you’re getting one of the most refined high-end exhaust upgrades available for the latest BMW M3/M4 LCI platform.