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GFB 08+ WRX/STi / 09+ Forester / 03-09 LGT 3 pc Underdrive/Non-Underdrive Pulley Kit
GFB 08+ WRX/STi / 09+ Forester / 03-09 LGT 3 pc Underdrive/Non-Underdrive Pulley Kit
Go Fast BitsGo Faster ? Add Lightness, GFB's Lightweight Pulley Kits offer sharper throttle response and faster acceleration by significantly reducing the rota...
View full detailsGFB 08+ Subaru WRX Short Shifter
Go Fast BitsTrue to our philosophy of Performance Without Compromise, GFB's Short Shift Kits are designed with a unique linkage system that means the shift thr...
View full detailsGFB 06-10 Mazdaspeed 3/6 / 90-94 Eclipse TMS Respons Blow Off Valve Kit
Go Fast BitsIf cars like yours typically suffer issues such as backfiring and stalling when using a fixed-ratio atmosphere-venting BOV, the Respons can help. B...
View full detailsGFB 04-10 WRX/STI 3 Piece Under-Drive Pulley Kit w/ Belts (Crank Alternator & Power Steering)
Go Fast BitsGo Faster ? Add Lightness, GFB's Lightweight Pulley Kits offer sharper throttle response and faster acceleration by significantly reducing the rota...
View full detailsGFB 04-07 STI Short Shifter Kit
Go Fast BitsTrue to our philosophy of Performance Without Compromise, GFB's Short Shift Kits are designed with a unique linkage system that means the shift thr...
View full detailsGFB 03-10 Evo 8-10 Deceptor Pro II Blow Off Valve Kit
Go Fast BitsControl the sound of your BOV "ON-THE-FLY" Go on, admit it. There are times you wish you could have that signature turbo blow off sound, but you're...
View full detailsGFB 02-07 WRX Short Shifter
Go Fast BitsTrue to our philosophy of Performance Without Compromise, GFB's Short Shift Kits are designed with a unique linkage system that means the shift thr...
View full detailsGFB 02-07 WRX / 04-10 STI TMS Respons Blow Off Valve Kit
Go Fast BitsIf cars like yours typically suffer issues such as backfiring and stalling when using a fixed-ratio atmosphere-venting BOV, the Respons can help. B...
View full detailsGFB 02-07 WRX / 04-10 STI Deceptor Pro Blow Off Valve Kit
Go Fast BitsControl the sound of your BOV "ON-THE-FLY" Go on, admit it. There are times you wish you could have that signature turbo blow off sound, but you're...
View full detailsGFB 01/14+ Subaru WRX Deceptor Pro II Motorised Blow Off Valve w/TMS Advantage- Adjust In Cabin
Go Fast BitsControl the sound of your BOV "ON-THE-FLY" Go on, admit it. There are times you wish you could have that signature turbo blow off sound, but you're...
View full detailsGFB VTA Valve Mercedes Turbo w/ Electronic Factory Diverter Valve
Go Fast BitsVTA BOVs vent to atmosphere to make the signature turbo blow-off sound, where the DV+ recirculates the air to keep it quiet. Each valve in the VTA ...
View full detailsGFB Whistling Trumpet (only for Stealth FX and WRX Hybrid)
Go Fast BitsThe 5701 can be used in place of the standard trumpet on GFB valves (Part numbers T9003 & T9503), and will make a whistling sound. However, it ...
View full detailsGFB Whistling Trumpet (suits all valves)
Go Fast BitsThe 5702 can be used in place of the standard trumpet on all GFB valves, and will make the whistling sound more readily than the 5701 (high boost a...
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