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Original price $380.90
Original price $380.90 - Original price $380.90
Original price $380.90
Current price $342.81
$342.81 - $342.81
Current price $342.81

GFB 08+ WRX/STi / 09+ Forester / 03-09 LGT 3 pc Underdrive/Non-Underdrive Pulley Kit

Go Fast Bits
Low stock

Go Faster ? Add Lightness, GFB's Lightweight Pulley Kits offer sharper throttle response and faster acceleration by significantly reducing the rota...

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Original price $380.90
Original price $380.90 - Original price $380.90
Original price $380.90
Current price $342.81
$342.81 - $342.81
Current price $342.81
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Original price $250.00
Original price $250.00 - Original price $250.00
Original price $250.00
Current price $225.00
$225.00 - $225.00
Current price $225.00

GFB 08+ Subaru WRX Short Shifter

Go Fast Bits
Low stock

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...

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Original price $250.00
Original price $250.00 - Original price $250.00
Original price $250.00
Current price $225.00
$225.00 - $225.00
Current price $225.00
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Original price $356.50
Original price $356.50 - Original price $356.50
Original price $356.50
Current price $320.85
$320.85 - $320.85
Current price $320.85

GFB 06-10 Mazdaspeed 3/6 / 90-94 Eclipse TMS Respons Blow Off Valve Kit

Go Fast Bits
Low stock

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...

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Original price $356.50
Original price $356.50 - Original price $356.50
Original price $356.50
Current price $320.85
$320.85 - $320.85
Current price $320.85
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Original price $381.00
Original price $381.00 - Original price $381.00
Original price $381.00
Current price $342.90
$342.90 - $342.90
Current price $342.90

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

Go Fast Bits
In stock

Go Faster ? Add Lightness, GFB's Lightweight Pulley Kits offer sharper throttle response and faster acceleration by significantly reducing the rota...

View full details
Original price $381.00
Original price $381.00 - Original price $381.00
Original price $381.00
Current price $342.90
$342.90 - $342.90
Current price $342.90
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Original price $339.00
Original price $339.00 - Original price $339.00
Original price $339.00
Current price $305.10
$305.10 - $305.10
Current price $305.10

GFB 04-07 STI Short Shifter Kit

Go Fast Bits
Low stock

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...

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Original price $339.00
Original price $339.00 - Original price $339.00
Original price $339.00
Current price $305.10
$305.10 - $305.10
Current price $305.10
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Original price $525.20
Original price $525.20 - Original price $525.20
Original price $525.20
Current price $472.68
$472.68 - $472.68
Current price $472.68

GFB 03-10 Evo 8-10 Deceptor Pro II Blow Off Valve Kit

Go Fast Bits
Low stock

Control 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...

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Original price $525.20
Original price $525.20 - Original price $525.20
Original price $525.20
Current price $472.68
$472.68 - $472.68
Current price $472.68
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Original price $250.00
Original price $250.00 - Original price $250.00
Original price $250.00
Current price $225.00
$225.00 - $225.00
Current price $225.00

GFB 02-07 WRX Short Shifter

Go Fast Bits
In stock

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...

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Original price $250.00
Original price $250.00 - Original price $250.00
Original price $250.00
Current price $225.00
$225.00 - $225.00
Current price $225.00
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Original price $356.50
Original price $356.50 - Original price $356.50
Original price $356.50
Current price $320.85
$320.85 - $320.85
Current price $320.85

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

Go Fast Bits
In stock

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...

View full details
Original price $356.50
Original price $356.50 - Original price $356.50
Original price $356.50
Current price $320.85
$320.85 - $320.85
Current price $320.85
Save 10% Save %
Original price $525.20
Original price $525.20 - Original price $525.20
Original price $525.20
Current price $472.68
$472.68 - $472.68
Current price $472.68

GFB 02-07 WRX / 04-10 STI Deceptor Pro Blow Off Valve Kit

Go Fast Bits
Low stock

Control 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 details
Original price $525.20
Original price $525.20 - Original price $525.20
Original price $525.20
Current price $472.68
$472.68 - $472.68
Current price $472.68
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Original price $525.20
Original price $525.20 - Original price $525.20
Original price $525.20
Current price $472.68
$472.68 - $472.68
Current price $472.68

GFB 01/14+ Subaru WRX Deceptor Pro II Motorised Blow Off Valve w/TMS Advantage- Adjust In Cabin

Go Fast Bits
In stock

Control 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 details
Original price $525.20
Original price $525.20 - Original price $525.20
Original price $525.20
Current price $472.68
$472.68 - $472.68
Current price $472.68
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Original price $229.50
Original price $229.50 - Original price $229.50
Original price $229.50
Current price $206.55
$206.55 - $206.55
Current price $206.55

GFB VTA Valve Mercedes Turbo w/ Electronic Factory Diverter Valve

Go Fast Bits
In stock

VTA 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 ...

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Original price $229.50
Original price $229.50 - Original price $229.50
Original price $229.50
Current price $206.55
$206.55 - $206.55
Current price $206.55
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Original price $44.90
Original price $44.90 - Original price $44.90
Original price $44.90
Current price $40.41
$40.41 - $40.41
Current price $40.41

GFB Whistling Trumpet (only for Stealth FX and WRX Hybrid)

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Out of stock

The 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 ...

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Original price $44.90
Original price $44.90 - Original price $44.90
Original price $44.90
Current price $40.41
$40.41 - $40.41
Current price $40.41
Sold out
Original price $44.90
Original price $44.90 - Original price $44.90
Original price $44.90
Current price $40.41
$40.41 - $40.41
Current price $40.41

GFB Whistling Trumpet (suits all valves)

Go Fast Bits
In stock

The 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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Original price $44.90
Original price $44.90 - Original price $44.90
Original price $44.90
Current price $40.41
$40.41 - $40.41
Current price $40.41
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