My Go Fast Bits Respons Bypass Valve - 2005 Subaru WRX STI (Stage 2) (GFB) - @Barnacules

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In this video I unbox and install my Go Fast Bits Respons Bypass Value on my 2005 Subaru WRX STI. This value allows you to get the sound of a BOV when you shift without venting all of the atmosphere causing engine stutter and other boost related problems. It's completely tune-able and you can make it as loud or as quiet as you want.

As the name suggests, the GFB Respons is designed specifically with the aim of improving throttle response and reducing turbo lag.

The GFB Respons TMS



What's TMS? GFB's 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 GFB's 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 withMAFsensors.

(*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 to 40% more boost is available)

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. This show is an independent production of Jerry Berg (aka Barnacules). Opinions are my own and do not necessarily reflect the opinions of my employer, friends, or any companies mentioned in the show. Email business inquiries to [email protected] Help the channel by donating BitCoin to 1MfVZVMjfUUq8srg1d4RbgXR5e7JLw7R6P

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