Bilstein B8 Performance Plus Front Right Strut Assembly - 2015-2021 Subaru WRX / STI Forced Induction>Blow Off Valves The factory STI wing looks

The factory STI wing looks pretty mean

If this tension is not relieved then spring binding can occur leading to the spring rate effectively altering slightly as the spring compresses and extends

not a hydro-dipped plastic

Provides optimal cooling efficiency and performance

Bilstein B8 Performance Plus Front Right Strut Assembly - 2015-2021 Subaru WRX / STI Forced Induction>Blow Off Valves The factory STI wing looksBilstein B8 Performance Strut 2015+ WRX 2015+ STI (Front Right) Bilstein B8 Performance Strut 2015+ WRX 2015+ STI (Front Right) PLEASE NOTE: These struts are meant to be use with LOWERING SPRINGS. They will not work with OEM springs.