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

Go Fast Bits Crank Pulley Kit
Limited Supply: only 2 remaining
Availability: Usually ships within 24 hours
Was: $335.45
Sale: $301.91
Save: 10%
Save: $33.54
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Go Fast Bits 3-piece underdrive pulley kit (crank, alternator, and power steering pulleys and belts)

GO FASTER ? ADD LIGHTNESS. GFB's Lightweight Pulley Kits offer sharper throttle response and faster acceleration by significantly reducing the rotating mass at the engine.; Made from a single billet of 6061-T6 aluminium, then precision CNC machined to exacting tolerances, our pulley kits offer an exceptional bolt-on performance advantage without the need for supporting mods or tuning.; In some vehicle applications additional performance benefits are available at high RPM by underdriving the accessories (slowing them down), which reduces the parasitic load on the engine. All underdriven kits are thoroughly tested to ensure that the benefit comes without compromising the accessory performance.; 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 torque. GFB Lightweight Pulleys reduce inertia by up to 85 percent, so most of the torque that used to accelerate the pulley can now be applied to the wheels.

Fitment Notes


Compatible Vehicles

Additional Information

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


  • 2010
  • 2010
  • 9328022002484
  • Go Fast Bits
  • Available
  • Usually ships within 24 hours
  • New

Shipping Information

  • Item Requires Shipping
  • 1.9 lbs.
  • W3.1000” x H6.5000” x L6.9000”
  • Free Shipping!