SLP Pulley only, 1997-04 3800 Supercharged 3.5 inch.

SLP now has available a new smaller diameter supercharger pulley for all supercharged 3800 GM engines. This new pulley can help your engine produce up to an additional 25 horsepower, but not at the cost of reliability or durability. SLP's new pulley is constructed from OEM-quality steel, has a black OEM finish and appearance for an un-touched underhood look. The pulley utilizes the original factory drive belt, and is available separately or with a special tool to complete the installation. OFF-ROAD use only.