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2008-2014 WRX

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    GFB3 pc Underdrive/Non-Underdrive Pulley Kit 2008-2014 WRX / 2008-2021 STI

    Go Fast Bits
    $365.00
    $365.00 - $365.00
    $365.00
    $328.50
    $328.50 - $328.50
    $328.50
      Lease to own   Pay as low as   $13.27/week

    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...

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    GFB Mach 2 TMS Recirculating Diverter Valve 2008-2014 WRX

    Go Fast Bits
    $212.00
    $212.00 - $212.00
    $212.00
    $190.80
    $190.80 - $190.80
    $190.80
      Lease to own   Pay as low as   $7.71/week

    ALL THE PERFORMANCE WITH OR WITHOUT THE NOISE! GFB's Mach 2 utilises GFB's proven TMS Technology to ensure rapid boost recovery on gearshift and op...

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    GFB Direct Fit Deceptor Pro II 2008-2014 WRX

    Go Fast Bits
    $504.00
    $504.00 - $504.00
    $504.00
    $453.60
    $453.60 - $453.60
    $453.60
      Lease to own   Pay as low as   $18.32/week

    Now You Can Control The Sound Of The BOV From Inside The Cabin!So how much more can you do with a blow-off valve? Well, the Deceptor Pro II takes t...

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    GFB Short Shifter 2008-2014 WRX

    Go Fast Bits
    $239.00
    $239.00 - $239.00
    $239.00
    $215.10
    $215.10 - $215.10
    $215.10
      Lease to own   Pay as low as   $8.69/week

    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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    GFB Crank Pulley (Not Under-Drive) 2002-2014 WRX / 2004-2021 STI

    Go Fast Bits
    $179.00
    $179.00 - $179.00
    $179.00
    $161.10
    $161.10 - $161.10
    $161.10
      Lease to own   Pay as low as   $6.51/week

    Install a GFB Non-underdrive light-weight under-drive pulley kit and get better throttle response and more power! How do they do this? 1. Less weig...

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  • Sale Sale

    GFB 2 Piece Under-Drive Pulley Kit w/ Belts (Crank & Alternator) 2002-2021 WRX/STI

    Go Fast Bits
    $260.00
    $260.00 - $260.00
    $260.00
    $234.00
    $234.00 - $234.00
    $234.00
      Lease to own   Pay as low as   $9.45/week

    One of the ways that you can improve the response in your engine is by adding a lightweight pulley set. Lightweight pullies have less rotational ma...

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  • Sale Sale

    GFB TMS Respons Blow Off Valve Kit 2008-2014 WRX / 05-09 LGT

    Go Fast Bits
    $342.00
    $342.00 - $342.00
    $342.00
    $307.80
    $307.80 - $307.80
    $307.80
      Lease to own   Pay as low as   $12.43/week

    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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