Ralco RZ Pulleys are designed with a unique blend of performance and reliability. These pulleys are made from the highest quality 6061 Aluminum billet. Ralco RZ pulley conversions are proven to produce maximum power gains with the performance benefits of weight reduction, that you wouldnt receive from factory parts. Throttle response, horsepower and torque are all increased with this great product.
Application:
- 1998-1999 BMW 323IS
- 1996-1998 BMW 328I
- 1996-1999 BMW 328IS
- 1997-2000 BMW 528I
- 1996-1999 BMW M3
- 1997-2000 BMW Z3 L6 2.8
- 1998-2000 BMW Z3 M ROADSTER