GFB 99-00 Subaru WRX/Forrester GT Light-Weight Engine Pulley Kit

This is the Go Fast Bits (GFB) lightweight engine pulley kit for your 1999-2002 Subaru Impreza WRX or Forester GT. By reducing the rotating mass on your engine's crankshaft, alternator, and power steering pump, this kit helps your engine rev more freely, leading to a livelier feel and improved acceleration. It's a bolt-on performance upgrade that doesn't require any other modifications or tuning to work effectively.

The GFB kit is made from a single billet of 6061-T6 aluminum, precision CNC machined for accuracy. This construction significantly cuts down on the inertia your engine needs to overcome, with reductions of up to 85% possible. This means more of the engine's torque can be sent to the wheels instead of being used to spin the heavier factory pulleys. Additionally, the kit underdrives the accessories like the alternator and power steering pump, which further reduces the load on the engine, especially at higher RPMs, without negatively impacting their performance.

This 3-piece kit includes the crank, alternator, and power steering pulleys, along with the necessary belts. It's designed as a direct fit, making installation straightforward for those comfortable working on their engine. You can expect a sharper throttle response and a more willing engine that feels more eager to rev.