RPI ST Pulley Kit - BMW E60 M5 / E63 M6
IN STOCK & READY TO SHIP
The ST pulley kit helps low end response while adding some pep to your engine. Unlike other pullies on the market, our pulley is hard anodized silver making it difficult to detect from your dealership. Expect 15hp+*.
- RPI ST underdrive pulley
- Installation Hardware
- New belts