GFB T9503 DECEPTOR PRO 2 - IN-CABIN MOTORISED ADJUSTABLE BIAS VENTING DIVERTER VALVE - SUBARU IMPREZA VA WRX STi 2.5 Corolla Independent testing shows gains of

Independent testing shows gains of 23 to 29 hp and 22 to 28 ft-lb

Up to 78 live parameters available

We recommend expert fitting to protect your engine and ensure correct bleeding of the cooling system

If you are building a tasteful performance street car or a refined daily with presence

GFB T9503 DECEPTOR PRO 2 - IN-CABIN MOTORISED ADJUSTABLE BIAS VENTING DIVERTER VALVE - SUBARU IMPREZA VA WRX STi 2.5 Corolla Independent testing shows gains ofGo on, admit it. There are times you wish you could have that signature turbo blow off sound, but youre not prepared to listen to it all the time. GFBs Deceptor Pro II delivers just what you need the ability to control how loud your BOV sound is, from the drivers seat. To top it off, if your car typically suffers issues such as backfiring and stalling when venting more than a certain percentage of air to atmosphere, the controller can easily be