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.
3-piece underdrive pulley kit (crank/alternator/pwr steering pulleys and belts). Suits WRX/STi MY94-98, Forester GT MY98-00.
Subaru 3-piece underdrive pulley kit (Crank, alternator & power steering pulleys & belts. Suits WRX/STi MY94-98, Forester GT MY98-00)
Product Features:
Air Freight Prohibited: false
Not Carb Approved: false
Ltl Freight Required: false
Prop 65: Y
Epa: N/A
Carb Acknowledgement Required: f
Fits According to Mfg but not guarunteed.
1994SubaruImprezaBase
1994SubaruImprezaL
1994SubaruImprezaLS
1995SubaruImprezaBase
1995SubaruImprezaL
1995SubaruImprezaLX
1995SubaruImprezaOutback
1996SubaruImprezaBrighton
1996SubaruImprezaL
1996SubaruImprezaLX
1996SubaruImprezaOutback
1997SubaruImprezaBrighton
1997SubaruImprezaL
1997SubaruImprezaOutback
1998SubaruImprezaL
1998SubaruImprezaOutback
1998SubaruImprezaRS