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

  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 not prepared to listen to it all the time. GFB's...
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  $332.00

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  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 fixed-ratio atmosphere-venting BOV, the Respons can help. By adjusting the venting bias to suit the car you c...
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  $206.10

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  $229.00

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  GFB 02-07 WRX Short Shifter

  True to our philosophy of Performance Without Compromise, GFB's Short Shift Kits are designed with a unique linkage system that means the shift throw is fully adjustable whilst retaining the stock ...
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  Regular price

  $441.00

  Regular price

  $490.00

  Sale price

  $441.00

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

  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 not prepared to listen to it all the time. GFB's...
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  $280.80

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  $312.00

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  GFB 04-07 STI Short Shifter Kit

  True to our philosophy of Performance Without Compromise, GFB's Short Shift Kits are designed with a unique linkage system that means the shift throw is fully adjustable whilst retaining the stock ...
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  $315.00

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  $350.00

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

  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 in a second or two saps a measurable amount of to...
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  $298.80

  Regular price

  $332.00

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

  If cars like yours typically suffer issues such as backfiring and stalling when using a fixed-ratio atmosphere-venting BOV, the Respons can help. By adjusting the venting bias to suit the car you c...
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  Regular price

  $206.10

  Regular price

  $229.00

  Sale price

  $206.10

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  GFB 08+ Subaru WRX Short Shifter

  True to our philosophy of Performance Without Compromise, GFB's Short Shift Kits are designed with a unique linkage system that means the shift throw is fully adjustable whilst retaining the stock ...