Supertech 87lb Dual Valve Springs & Ti Retainers Fits 2015-2018 Subaru WRX FA20F

SPRK-100-BRZ – Supertech Dual Valve Springs – 87 lb Seat Pressure. Outer Spring – 30.20mm OD – 22.20mm ID. Inner Spring – 22.20mm OD – 16.80mm ID. 15.00mm Max Net Lift. 18.50mm Coil Bind. 12.50 lbs/mm Rate. Complete set of 16 Dual Valve Springs, 16 Titanium Retainer’s, and Seat’s. This Package Includes: Supertech Performance Dual […]