2008-2014 WRX

It might be hard to imagine how reducing the mass of a pulley makes a car go faster, but accelerating a heavy factory pulley from say 3000-7000 RPM...

ALL THE PERFORMANCE WITH OR WITHOUT THE NOISE! GFB's Mach 2 utilises GFB's proven TMS Technology to ensure rapid boost recovery on gearshift and op...

Now You Can Control The Sound Of The BOV From Inside The Cabin!So how much more can you do with a blow-off valve? Well, the Deceptor Pro II takes t...

True to our philosophy of Performance Without Compromise, GFB's Short Shift Kits are designed with a unique linkage system that means the shift thr...

Install a GFB Non-underdrive light-weight under-drive pulley kit and get better throttle response and more power! How do they do this? 1. Less weig...

One of the ways that you can improve the response in your engine is by adding a lightweight pulley set. Lightweight pullies have less rotational ma...

If cars like yours typically suffer issues such as backfiring and stalling when using a fixed-ratio atmosphere-venting BOV, the Respons can help. B...