Products

GFB 02-07 WRX / 04-10 STI TMS Respons Blow Off Valve Kit

If cars like yours typically suffer issues such as backfiring and stalling when using a...

GFB 02-10+ WRX/STI Crank Pulley (Not Under-Drive)

GO FASTER ? ADD LIGHTNESS, GFB's Lightweight Pulley Kits offer sharper throttle response and faster...

GFB 04-10 WRX/STI 3 Piece Under-Drive Pulley Kit w/ Belts (Crank Alternator & Power Steering)

Go Faster ? Add Lightness, GFB's Lightweight Pulley Kits offer sharper throttle response and faster...

GFB 08+ WRX / 03-09 GT Legacy / 09+ XT Forester Direct Fit Deceptor Pro II

Control the sound of your BOV "ON-THE-FLY" Go on, admit it. There are times you...

GFB 08-10+ WRX / 05-09 LGT TMS Respons Blow Off Valve Kit

If cars like yours typically suffer issues such as backfiring and stalling when using a...

GFB HYBRID TMS Dual Port 01-07 Subaru WRX / 05-08 Forester XT

The Hybrid valve is back! In 1999, GFB's first Hybrid valve pioneered the dual port...

GFB HYBRID TMS Dual Port 03-09 Subaru Legacy GT

The Hybrid valve is back! In 1999, GFB's first Hybrid valve pioneered the dual port...

GFB Mach 2 TMS Recirculating Diverter Valve - Subaru 01-07 WRX / 02+ STi / 05-08 XT Forester

ALL THE PERFORMANCE WITH OR WITHOUT THE NOISE!, GFB's Mach 2 utilises GFB's proven TMS...

GFB Mach 2 TMS Recirculating Diverter Valve - Subaru 08+ WRX / 03-09 GT Legacy / 09-12 XT Forester

ALL THE PERFORMANCE WITH OR WITHOUT THE NOISE!, GFB's Mach 2 utilises GFB's proven TMS...

Grams Performance 02-11 Subaru WRX / 07+ STI / 07-11 Legacy 1000cc Fuel Injectors (Set of 4)

-5%

Grams Performance is proud to offer the most innovative high-performance fuel injectors for today's performance...

Grams Performance 02-11 Subaru WRX / 07+ STI / 07-11 Legacy 1150cc Fuel Injectors (Set of 4)

-5%

Grams Performance is proud to offer the most innovative high-performance fuel injectors for today's performance...

Grams Performance 02-11 Subaru WRX / 07+ STI / 07-11 Legacy 550cc Fuel Injectors (Set of 4)

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Grams Performance is proud to offer the most innovative high-performance fuel injectors for today's performance...