The GFB Respons is designed specifically with the aim of improving throttle response and reducing turbo lag. GFB’s Turbo Management System is the term they apply to their diverter valves that have features designed specifically for the purpose of turbo lag reduction.

On top of the fast reacion of the TMS valve, 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 sound 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 atmo-venting valves on cars with MAF sensors.

 

 

 

A compact and very lightweight bypass valve that will perform well on your Mazdaspeed and can pair with the Guardian Angel.