Go Fast Bits (GFB)

This is the standard spring that is supplied in all Respons TMS and Deceptor Pro II valves, and is an optional extra for all Mach 2 valves when bei...

Screw-in Plug (block off recirc or atmo outlet) Screws into any GFB Trumpet or plumb back outlet except vavles manufactured before 2003

MACH 2 ATMOSPHERE UPGRADE KIT TO CONVERT FROM RECIRCULATING TO ATMOSPHERE VENTING. Includes trumpet, firmer spring, and 33mm hose plug. To vent t...

20mm Inlet Hose Adaptor for Stealth FX, Deceptor Pro and Respons TMS Valves

MACH 2 ATMOSPHERE UPGRADE KIT TO CONVERT FROM RECIRCULATING TO ATMOSPHERE VENTING. Includes trumpet, firmer spring, and 30mm hose plug. To vent t...

MACH 2 ATMOSPHERE UPGRADE KIT TO CONVERT FROM RECIRCULATING TO ATMOSPHERE VENTING. Includes trumpet, firmer spring, and 25mm hose plug. To vent t...

Ricirc Outlet Hose Adaptors for all GFB Valves except Basic

MACH 2 ATMOSPHERE UPGRADE KIT TO CONVERT FROM RECIRCULATING TO ATMOSPHERE VENTING. Includes trumpet, firmer spring, and 20mm hose plug. To vent t...

Whistling TrumpetYou asked, we delivered. Many times we have been asked for a replacement trumpet that gives a different sound, and here it is. The...

Used for blocking off unused plumb-back hoses with full atmosphere-venting blow-off valves.

Short Shift Kit- 6 Speed also suits: SUBARU STi MY02 (Aka "Bugeye") SUBARU STi MY08-13 SUBARU STi 2014-On (EJ25 Engine)   GFB 4003 Instructions

Used for blocking off unused plumb-back hoses with full atmosphere-venting blow-off valves.

FB’s EGT (Exhaust Gas Temperature) Plugin kit is a direct plugin to our existing 3006 D-Force Electronic Boost Controller, adding critical exhaust ...

GFB To HKS Adaptor

Inlet 38mm pipe mount

35mm Inlet Hose Adaptor for Stealth FX, Deceptor Pro and Respons TMS Valves

30mm Inlet Hose Adaptor for Stealth FX, Deceptor Pro and Respons TMS Valves

25mm Inlet Hose Adaptor for Stealth FX, Deceptor Pro and Respons TMS Valves

GFB Lightweight Pulleys for BRZ/FR-s/86 Like all GFB lightweight pulleys, these begin life as a single 6061-T6 aluminium alloy billet, which is the...

Ricirc Outlet Hose Adaptors for all GFB Valves except Basic

GFB's Short Shift kits are like no other. Until you feel the action of one for yourself, you won t believe the difference! Why did we bother to mak...

Subaru WRX MY08-14 Short Shift Kit GFB 4005 Instructions

Short Shift Kit- 6 Speed also suits: SUBARU STi MY03-07 SUBARU STi MY03-07 SUBARU STi MY02 (Aka "Bugeye") SUBARU STi MY03-07 SUBARU STi MY08-13 SU...

Mitsubishi Evo Pulley Kit New from GFB is the Under-drive Crank Pulley for the Mitsubishi EVO VIII & IX. Like all GFB pulleys, the material u...