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...

This is set for the 16V PD engines  It prevents valve float and allows higher RPM and higher lift camshafts to be used . installed height pressure -...

dual valve springs 1.8T set specs INTAKE SPRINGS Installed height pressure - 35kg ( +25% compared to oem ) 8mm lift pressure - 63 kg ( +15% compared...

Commonrail valve springs 16v performance set Tech specs : installed height pressure - 36kg (+45% over stock springs ) 9mm lift pressure - 63 kg (+40% over stock...

Commonrail valve springs 24v performance set Tech specs : installed height pressure - 36kg (+45% over stock springs ) 9mm lift pressure - 63 kg (+40% over stock...