Delivery info

From then, delivery is generally is the same day / 2 days (depending on your location). Cut off time 2 PM PST.

30 days returns

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Go Fast Bits TMS adjustable Bias Venting Diverter Valve- BOV Mazda - T9002

Go Fast Bits TMS adjustable Bias Venting Diverter Valve- BOV Mazda - T9002

Respons TMS Direct fit Blow off valve or BOV with GFB TMS advantage. Patented adjustable venting bias system diverter valve.

Part Number Fits:

MAZDA 3 MPS BK MZR L3-VDT 06-09 BK 191kw Petrol Engine FWD Hatchback 07/06-09/09
MAZDA 3 MPS BK MZR L3-VDT 06-09 BK 191kw Petrol Engine FWD Hatchback 07/06-09/09
MAZDA 6 MPS GG MZR L3-VDT 05-on GG 191kw Petrol Engine AWD Sedan 08/05-02/08
MAZDA 6 MPS GG MZR L3-VDT 05-on GG 191kw Petrol Engine AWD Sedan 08/05-02/08
MAZDA CX7 All 2.3 MZR L3-VDT 06-on ER 175kw Petrol Engine AWD Closed Off-Road Vehicle 11/06-on
MAZDA CX7 All 2.3 MZR L3-VDT 06-on ER 175kw Petrol Engine AWD Closed Off-Road Vehicle 11/06-on
MITSUBISHI Eclipse 1G 4G63t 1990-1994 D2_A 157kw Petrol Engine AWD Coupe 12/89-03/94
MITSUBISHI Eclipse 1G 4G63t 1990-1994 D2_A 157kw Petrol Engine AWD Coupe 12/89-03/94
MITSUBISHI Galant VR4 E38A-E39A 4G63 90-93 HG, HH 148kw Petrol Engine AWD Sedan 10/90-03/93
MITSUBISHI Galant VR4 E38A-E39A 4G63 90-93 HG, HH 148kw Petrol Engine AWD Sedan 10/90-03/93
NISSAN Skyline R32 GTS-t RB20DET 89-93 R32 158kw Petrol Engine RWD Sedan 03/89-06/93
NISSAN Skyline R32 GTS-t RB20DET 89-93 R32 158kw Petrol Engine RWD Sedan 03/89-06/93
NISSAN Skyline R32 GTS-t RB20DET 89-93 R32 158kw Petrol Engine AWD Sedan 03/89-06/93
NISSAN Skyline R32 GTS-t RB20DET 89-93 R32 158kw Petrol Engine AWD Sedan 03/89-06/93
NISSAN Skyline R32 GTS-t RB20DET 89-93 R32 158kw Petrol Engine RWD Coupe 03/89-06/93
NISSAN Skyline R32 GTS-t RB20DET 89-93 R32 158kw Petrol Engine RWD Coupe 03/89-06/93
NISSAN Skyline R32 GTS-t RB20DET 89-93 R32 158kw Petrol Engine AWD Coupe 03/89-06/93
NISSAN Skyline R32 GTS-t RB20DET 89-93 R32 158kw Petrol Engine AWD Coupe 03/89-06/93
NISSAN Skyline R31 GTS-Turbo RB20DET 85-90 R31 160kw Petrol Engine RWD Coupe 08/85-05/90
NISSAN Skyline R31 GTS-Turbo RB20DET 85-90 R31 160kw Petrol Engine RWD Coupe 08/85-05/90
NISSAN Skyline R34 GT-T RB25DET 98-06 R34 206kw Petrol Engine RWD Sedan 05/98-08/02
NISSAN Skyline R34 GT-T RB25DET 98-06 R34 206kw Petrol Engine RWD Sedan 05/98-08/02
NISSAN Skyline R34 GT-T RB25DET 98-06 R34 206kw Petrol Engine RWD Coupe 05/98-01/06
NISSAN Skyline R34 GT-T RB25DET 98-06 R34 206kw Petrol Engine RWD Coupe 05/98-01/06
NISSAN Skyline R33 GTS-t RB25DET 1993-1998 R33 184kw Petrol Engine RWD Coupe 01/94-07/00
NISSAN Skyline R33 GTS-t RB25DET 1993-1998 R33 184kw Petrol Engine RWD Coupe 01/94-07/00
MAZDASPEED Mazdaspeed 3 MPS 06/09 BK 191kw Petrol Engine FWD Hatchback 12/06-06/09
MAZDASPEED Mazdaspeed 3 MPS 06/09 BK 191kw Petrol Engine FWD Hatchback 12/06-06/09
MAZDASPEED Mazdaspeed 6 2.3 MPS 2005-2007 GG 191kw Petrol Engine AWD Sedan 12/05-08/07
MAZDASPEED Mazdaspeed 6 2.3 MPS 2005-2007 GG 191kw Petrol Engine AWD Sedan 12/05-08/07
MAZDA 3 MPS BL MZR L3-VDT 09-13 BL 191kw Petrol Engine FWD Hatchback 06/09-11/13
MAZDA 3 MPS BL MZR L3-VDT 09-13 BL 191kw Petrol Engine FWD Hatchback 06/09-11/13

SMARTER THAN A DUAL PORT BOV!

Atmosphere venting BOV won’t work on your car? Try a GFB Respons – you’ll be surprised!

Just another dual-port BOV?

On 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 patented venting bias adjustment system, the Respons allows you to precisely control how much air vents from each of the two outlets.

Why is this so important? Two key reasons:

Adjust 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.
Get a blow-off sound WITHOUT causing stalling, backfiring, or any other BOV-related issues, even on a car with a sensitive airflow meter (MAF).
Hold on, it gets better. The Respons isn’t just a noise-maker. It also;

Offers better throttle response
Faster boost recovery on gearshift
Unlimited boost-holding!
For 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 

tms-respons-chart
(*Chart shows comparative manifold boost pressure rise during 1st to 2nd gear shift as tested on a CA18DET with a T28 turbo. GFB TMS improvement is seen as a 30% faster return to peak boost, during which time up to40% more boost is available)

How GFB’s patented venting bias adjustment works

tms-respons-diagram
Twisting 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.

Available in a huge range of universal and direct bolt-on kits

When 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.

Performance AND sound without compromise!

Adjust the volume of your blow-off sound
Up to 30% faster boost recovery on gearshift
Get the blow off sound without the hassles - even on sensitive MAF-based systems
Hold unlimited boost pressure
Direct bolt-on kits available
Get the inside information...

GFB is no stranger to dual port BOVs. In fact, GFB pioneered the design in 1999, following up with the patented venting bias adjustment system in 2001.

This 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.

“I thought venting to atmosphere couldn’t be done on a car with an airflow meter, so how does the Respons do it?”

We’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.

When 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.

However, 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.

Since 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.

If everything you’ve heard tells you a BOV won’t work on your car, try a GFB Respons - you will be surprised!

“How does a GFB Respons improve performance?”

Boost holding

Unlike 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!

The 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.

Throttle response and boost recovery

GFB’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:

A factory bypass valve is open until required to shut.

A GFB TMS valve is shut until required to open.

This difference in operating methods means that the GFB valve only vents when required, and only enough air to prevent compressor surge.

For 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).

Fitments:

2012 Mazda 3 Mazdaspeed 2.3L 2260CC l4 GAS DOHC Turbocharged

2009 Mazda 3 Mazdaspeed Hatchback 4-Door 2.3L 2260CC l4 GAS DOHC Turbocharged

2008 Mazda 3 Mazdaspeed Hatchback 4-Door 2.3L 2260CC l4 GAS DOHC Turbocharged

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