Supertech Dual Valve Spring Kit for Evo X Clevite so the same install routine

so the same install routine works on both sides

• We offer these kits in a few different styles for Evo 9 and Evo 4-8

Supertech dual valve spring kits for 4G63 Evo

(1) STM Large Mounting Bracket (STM-EVO89-OCKBRK-R)

Supertech Dual Valve Spring Kit for Evo X Clevite so the same install routineSupertech dual valve spring kits for 4B11 Evo X. Includes 16 dual springs, 16 titanium retainers and 16 valve seats. Please do all your research and consult your engine builder if necessary! Vehicle Fitment: 2008 2015 Evolution X Purchase Includes: (16) Dual Valve Springs (16) Titanium Retainers (16) Valve Seats Part Number: Seat Pressure: Open Pressure: Details: SPRK M1012 EX1 75 @ 34. 50 185 @ 11. 50 Max Lift: 14. 50mm Coil Bind: 20. 00mm Rate: 9.