Go Fast Bits Respons TMS Blow-Off Valve (08-14 WRX & 05-09 Legacy GT)
The GFB BOV is the perfect upgrade for any one running a larger turbo, or more boost. It is able to control the pressure much more efficiently.
Whats TMS? GFBs Turbo Management System is the term we apply to our diverter valves that have features designed specifically for the purpose of turbo lag reduction.
Tests show that TMS features can return the engine to peak boost up to 30% faster than a factory diverter valve when shifting gears*.
On top of the TMS benefits, the Respons also packs GFBs patented adjustable venting bias system found on the Stealth FX.
This unique system allows the amount of air vented to either recirc or atmosphere to be infinitely varied to change the venting sound like a stereo volume dial!
So if you want noise with your performance, the Respons can deliver! By fine-tuning the venting ratio, you CAN achieve a blow-off sound WITHOUT throwing a CEL, running rich, stalling, using more fuel or causing any other problems commonly associated with atmoventing valves on cars with MAF sensors.
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 https://www.P65Warnings.ca.gov/passenger-vehicle.
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