Go Fast Bits Underdrive Pulley Kit w/ Belts 2004-2007 WRX / STI

Description:
This GFB Pulley Kit comes with the crank, alternator and power steering pulleys as well as the belt needed for install. Having large heavy pulleys spinning takes away power that is better spent moving the car. This kit takes care of that by replacing the crank pulley with a lighter version that underdrives the power steering and alternator yet leaves the A/C compressor spinning at normal speeds.

Features:
- Includes crank pulley
- Includes power steering pulley
- Includes alternator pulley
- Made using lightweight aluminum materials
- Anodized black finish
- Improves engine response
- Increases faster revs
- AC compressor will still operate at normal speeds
- Includes new belts

Applications:
2002-2007 WRX
2004-2007 STI
2004-2008 Forester XT