5150 Xtreme Duty Cylinder Sleeves

Each kit includes high-quality valve springs and all necessary components for seamless installation

Multiple grinds available for street

The global research and data speak volumes - BE consistently emerges as the best choice for your BMW Engine

Featuring the latest and greatest in compressor and turbine wheel technology from Precision

7.25″ Cerametallic Clutch Disc, 35 Spline X 10 Teeth Z4 M40i 5150 Xtreme Duty Cylinder SleevesTilton 7. 25 Cerametallic Clutch Disc Pack 35 Spline x 10 Teeth Tiltons 7. 25" cerametallic clutch discs feature a 4 paddle design and a proprietary ceramic metallic friction blend for exceptional durability and performance. Thicker than sintered metallic discs, these cerametallic versions offer greater thermal mass and improved heat capacityideal for high load racing conditions where consistent engagement and fade resistance matter. Key Specs: 7. 25"