Skunk2 High Lift Valve Springs and Titanum Retainers Toyota Supra MK5 BMW B58 S58 exterior L & R Series Engines

L & R Series Engines

Lock-free operation ensures no adverse affect to steering response

5 Tilted & Tapered Hi-Velocity Runners

3 x 1/8_ NPT and 3 x 1/4_ NPT Accessory Ports

allowing you to fine-tune your suspension for the perfect street setup

Skunk2 High Lift Valve Springs and Titanum Retainers Toyota Supra MK5 BMW B58 S58 exterior L & R Series EnginesThough Ultra Stage1 cams are compatible with stock OEM valve springs, we recommend the use of Skunk2 upgraded High Lift Valve Springs along with Titanium Retainers (PN: 313 14 1000) for the B58 as long term durability using stock valve springs is unknown. All Skunk2 valve springs control are made from super clean high tensile strength chrome silicone wire, shot peen stress relieved, and heat treated to provide consistent and reliable long term