Go Fast Bits
Go Fast Bits Underdrive Pulley Kit - WRX 2004-2007, STI 2004-2007
SKU: GFB2010
$470.99 CAD
Here, you are looking at the Go Fast Bits Underdrive Pulley Kit. This is a lightweight underdrive pulley kit that has been designed to help remove some rotational mass from your engine to improve the overall performance. The result is improved engine response, faster revs, along with improved power and performance.
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