Go Fast Bits Respons TMS Blow-Off Valve (02-07 WRX, 04-21 STI)

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? There are 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).

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 gear

How GFB’s Patented Venting Bias Adjustment Works

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.

$298.80
SKU
gfbT9003

 

Go Fast Bits "GFB" is a wholly Australian owned company started in 1997, manufacturing an exemplary range of innovative and high quality automotive products that give your vehicle the performance, sound, and looks you desire.

Our proudly Australian-made products are meticulously designed, tested, and crafted from the highest-grade materials in our own state-of-the-art CNC manufacturing facility. Keeping the design and production processes in-house affords us total quality control of our products from start to finish. Our philosophy at GFB is to produce exceptional automotive products that are built with the same precision, machining quality, and reliability that is the foundation of our reputation.

Year Fitments Subaru WRX Subaru STI
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WARNING: Operating, servicing and maintaining a passenger vehicle or off-road vehicle can expose you to chemicals including engine exhaust, carbon monoxide, phthalates, and lead, which are known to the State of California to cause cancer and birth defects or other reproductive harm. To minimize exposure, avoid breathing exhaust, do not idle the engine except as necessary, service your vehicle in a well-ventilated area and wear gloves or wash your hands frequently when servicing your vehicle. For more information go to P65Warnings

More Information
SKU gfbT9003
Manufacturer's Part Number T9003
Brand Go Fast Bits
Product Type Intake and Exhaust
Intake and Exhaust Turbo and Components