Go Fast Bits Underdrive Pulley Kit w/Belts Subaru Impreza RS 1999-2003 Vehicle Model_WRX STI such as plastic and rubber

such as plastic and rubber hoses and electrical wiring

This is a direct factory replacement kit that includes everything you need for a complete install with no cutting or further modification to your WRX

The Turbo XS 4-Bolt 3-inch Gasket for this exhaust is available to purchase separately

you can see the dyno charts of this spacer paired with our intake manifold spacer and the gains are tremendous

Go Fast Bits Underdrive Pulley Kit w/Belts Subaru Impreza RS 1999-2003 Vehicle Model_WRX STI such as plastic and rubberOne of the ways that you can improve the response in your engine is by adding a lightweight pulley set. Lightweight pullies have less rotational mass when compared to OEM pullies and less rotational mass means that you will have improved engine response for a little bump in both power and torque. Part #: 2002 This is the Go Fast Bits 3 Piece Underdrive Pulley Kit which includes the crank pulley, and both alternator and power steering pullies. These