Supertech Beehive Valve Spring and Titanium Retainer Kit for 2007-2012 Mini Cooper S Turbocharged 1.6L Engines

Beehive Valve Spring and Titanium Retainer Kit for 2007-2012 Mini Cooper S Turbocharged 1.6L Engines Set of 16 Single Valve Springs and 16 Titanium RetainersSPRK-MC56BE Type: Beehive Spring Press.Seat: 65 @ 33.60mm Max Lift: 11.40mm Coil Bind: 22.20mm Rate: 9.80 lbs/mm Retainer: RET-MC56/T1 Spring : SPR-MC56BEOur valve springs are computer designed to ensure that wire stress levels do not overpass the limits of stress defined in the diagrams of fatigue. We also utilize computer software that allows us to ensure that the harmonics are under control. All Supertech valve springs are made with premium super clean Chrome Silicon Vanadium Steel alloy for higher performance & durability at high rpms. Using high quality steel alloy also provides the added benefit of better structural memory for all of our springs, giving your performance racing engine a serious competitive advantage. Supertech retainers are manufactured with high quality military certified Titanium alloy, and are CNC machi