The set prevents valve float under high boost pressures due to springs greater stiffness (+40% ) compared to the OEM valve spring   . They are designed for maximum...

Perofmance dual valve springs set with retainers

The set prevents valve float under high boost pressures due to springs greater stiffness (+40% ) compared to the OEM valve spring   . They are designed for maximum...

Springs used for higher RPM and/or applying boost to the car . Tech Specs : Installed height pressure - 45 kg  10mm lift pressure - 96 kg 

Springs used for higher RPM and/or applying boost to the car . Tech Specs : Installed height pressure - 40 kg  10mm lift pressure - 97 kg 

Springs used for higher RPM and/or applying boost to the car . Tech Specs : Installed height pressure - 45 kg  10mm lift pressure - 96 kg 

B58 performance valve springs that are going to be runing higher rpm and boost. Ensures stable valvetrain operation . Lightweight steel retainers .