GSC Single Valve Spring and Titanium Retainer Kit WRX / STI

Description:
The GSC Power-Division Single Cylindrical Valve Spring with Ti Retainer for the Subaru EJ platforms includes 16 titanium retainers and 16 cylindrical valve springs. These round wire springs still have the same high quality attention to detail as our popular beehive kits. The GSC5743 is nano peened and batched according to seat pressure within our specs. The lightweight titanium retainers are CNC machined with tolerances and repeatability that are unmatched by other brands. This keeps a consistent seat pressure across the head for ultimate reliability and performance.

Features:
- Setup = Cylindrical
- Coil Bind = 0.845 in
- Install Height = 1.326 in
- Seat Pressure = 78 lbs
- Open Pressure w S1 / S2 Profile = 184 lbs @ 0.958" / 191 lbs @ 0.934 in / 197 lbs @ 0.911 in
- Maximum Valve Lift = 0.421 in

Applications:
2002-2007 WRX
2004-2007 STI
2008-2014 WRX
2008-2014 STI
2015-2021 STI