{"product_id":"gfb-respons-tms-blow-off-valve-wrx-01-07-sti-02-20-subaru","title":"GFB RESPONS TMS Blow Off Valve (WRX 01-07\/STi 02-20) SUBARU","description":"\u003cp\u003eAbout this range\u003c\/p\u003e \u003cp\u003eRESPONS TMS : SMARTER THAN A DUAL PORT BLOW OFF VALVE\u003c\/p\u003e \u003cp\u003eAtmosphere venting BOV won’t work on your car? Try a GFB Respons – you’ll be surprised!\u003c\/p\u003e \u003cp\u003eJust another dual-port BOV?\u003c\/p\u003e \u003cp\u003eOn the surface, it may look like just another dual-port blow-off valve, but the Respons is actually much more than that. Featuring GFB’s venting bias adjustment system, the Respons allows you to precisely control how much air vents from each of the two outlets.\u003c\/p\u003e \u003cp\u003e\u003c\/p\u003e \u003cp\u003eWhy is this so important? There are two key reasons:\u003c\/p\u003e \u003cp\u003e\u003c\/p\u003e \u003cp\u003eAdjust how loud the blow-off sound is. Recirculate all of the air for silent factory operation, vent it all to atmosphere for maximum noise, or set it ANYWHERE in between to suit your preference.\u003c\/p\u003e \u003cp\u003eGet a blow-off sound WITHOUT causing stalling, backfiring, or any other BOV-related issues, even on a car with a sensitive airflow meter (MAF).\u003c\/p\u003e \u003cp\u003eHold on, it gets better. The Respons isn’t just a noise-maker. It also;\u003c\/p\u003e \u003cp\u003e\u003c\/p\u003e \u003cp\u003eOffers better throttle response\u003c\/p\u003e \u003cp\u003eFaster boost recovery on gearshift\u003c\/p\u003e \u003cp\u003eUnlimited boost-holding!\u003c\/p\u003e \u003cp\u003eFor example, using GFB’s TMS (Turbo Management System) principle, tests show that the Respons can return the engine to peak boost up to 30% faster than a factory diverter valve when shifting gears (more information below)\u003c\/p\u003e \u003cp\u003e\u003cimg class=\"img-with-animation skip-lazy animated-in\" src=\"https:\/\/gfb.com.au\/wp-content\/uploads\/2018\/11\/tms-respons-chart.jpg\" alt=\"tms-respons-chart.jpg\"\u003e\u003c\/p\u003e \u003cp\u003eHow GFB’s venting bias adjustment works\u003c\/p\u003e \u003cp\u003eTwisting the adjusting ring opens up the atmo port, whilst the recirc port is simultaneously closed.This results in possible venting ratios ranging from 100% recirc, right through to 100% atmosphere and anywhere in between.\u003c\/p\u003e \u003cp\u003e\u003cimg class=\"img-with-animation skip-lazy animated-in\" src=\"https:\/\/gfb.com.au\/wp-content\/uploads\/2021\/08\/Venting_Bias_Adjustment.gif\" alt=\"Venting_Bias_Adjustment.gif\"\u003e\u003c\/p\u003e \u003cp\u003eAvailable in a huge range of universal and direct bolt-on kits\u003c\/p\u003e \u003cp\u003eWhen we say “bolt-on”, that’s EXACTLY what we mean. Everything you need is included, it fits directly in the factory location (not on a separate adaptor), and no modifications to the car are required.\u003c\/p\u003e \u003cp\u003e\u003c\/p\u003e \u003cp\u003ePerformance AND sound without compromise!\u003c\/p\u003e \u003cp\u003eAdjust the volume of your blow-off sound\u003c\/p\u003e \u003cp\u003eUp to 30% faster boost recovery on gearshift\u003c\/p\u003e \u003cp\u003eGet the blow off sound without the hassles - even on sensitive MAF-based systems\u003c\/p\u003e \u003cp\u003eHold unlimited boost pressure\u003c\/p\u003e \u003cp\u003eDirect bolt-on kits available\u003c\/p\u003e \u003cp\u003eGet the inside information...\u003c\/p\u003e \u003cp\u003eGFB is no stranger to dual port BOVs. In fact, GFB pioneered the design in 1999, following up with the venting bias adjustment system in 2001.\u003c\/p\u003e \u003cp\u003e\u003c\/p\u003e \u003cp\u003eThis technology is not just a gimmick – it’s the key to getting a blow-off sound without the issues (unlike other valves), and is exclusive to GFB.\u003c\/p\u003e \u003cp\u003e\u003c\/p\u003e \u003cp\u003e“I thought venting to atmosphere couldn’t be done on a car with an airflow meter, so how does the Respons do it?”\u003c\/p\u003e \u003cp\u003eWe’ve all heard the stories and seen people get shot down on forums when they ask about BOVs. Common responses are “your car will stall,backfire, run rich, go slower, or rip a hole in the space-time continuum that will bring about the end of the universe”. Certainly, if the BOV is not designed or adjusted correctly, at least some of these may be true.\u003c\/p\u003e \u003cp\u003e\u003c\/p\u003e \u003cp\u003eWhen you vent a BOV to atmosphere, you’re letting air out of the system that has been measured by the airflow meter, so the ECU will continue to inject fuel for that missing air, hence the issues with over-fuelling that can occur.\u003c\/p\u003e \u003cp\u003e\u003c\/p\u003e \u003cp\u003eHowever, by controlling HOW MUCH the valve vents, WHEN it vents, and for HOW LONG, the Respons can be configured to vent a portion of air to atmosphere at a time and of a volume that least affects the fuelling to the point where there are no negative side-effects.\u003c\/p\u003e \u003cp\u003e\u003c\/p\u003e \u003cp\u003eSince our competitors do not have a means for adjusting the amount of air that is vented to atmosphere, they are unable to achieve the same success that a Respons does on even the most sensitive engines.\u003c\/p\u003e \u003cp\u003e\u003c\/p\u003e \u003cp\u003eIf everything you’ve heard tells you a BOV won’t work on your car, try a GFB Respons - you will be surprised!\u003c\/p\u003e \u003cp\u003e“How does a GFB Respons improve performance?”\u003c\/p\u003e \u003cp\u003eBoost holding\u003c\/p\u003e \u003cp\u003eUnlike factory bypass valves, or other brand valves that require different springs for different boost levels, a GFB valve CANNOT be forced open by high boost!\u003c\/p\u003e \u003cp\u003e\u003c\/p\u003e \u003cp\u003eThe balanced piston design in a GFB valve uses boost pressure on either side to cancel out the forces. Therefore it doesn’t matter how much boost you run, you can be sure a Respons valve will deliver all of it to the engine.\u003c\/p\u003e \u003cp\u003e\u003c\/p\u003e \u003cp\u003eThrottle response and boost recovery\u003c\/p\u003e \u003cp\u003eGFB’s TMS (Turbo Management System) principle is based on an operating method that is different to all factory bypass valves, which can be summarised as:\u003c\/p\u003e \u003cp\u003e\u003c\/p\u003e \u003cp\u003eA factory bypass valve is open until required to shut.\u003c\/p\u003e \u003cp\u003e\u003c\/p\u003e \u003cp\u003eA GFB TMS valve is shut until required to open.\u003c\/p\u003e \u003cp\u003e\u003c\/p\u003e \u003cp\u003eThis difference in operating methods means that the GFB valve only vents when required, and only enough air to prevent compressor surge.\u003c\/p\u003e \u003cp\u003e\u003c\/p\u003e \u003cp\u003eFor example, during a gearshift it is possible to preserve a small amount of boost pressure for a short duration. Then, when the throttle is then re-opened, peak boost is reached faster than if all pressure is lost (as is the case with the factory valve that remains fully open too long).\u003c\/p\u003e \u003cp\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/E890XP-jTP8?si=QzieUqfMactG2q-Z\" title=\"YouTube video player\" frameborder=\"0\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e \u003cp\u003e\u003c\/p\u003e","brand":"GFB","offers":[{"title":"Default Title","offer_id":47255947313252,"sku":"T9003","price":337.45,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0745\/6260\/1060\/files\/photo_000b31c2-0b0b-4482-bf6b-c5db53129fa7.jpg?v=1762410985","url":"https:\/\/kyp.com.au\/products\/gfb-respons-tms-blow-off-valve-wrx-01-07-sti-02-20-subaru","provider":"KYP Performance House","version":"1.0","type":"link"}