Cusco Type OS Quick Release Lever Set Vehicle Model_SC 400 Properly designed valve springs will

Properly designed valve springs will control the dominant harmonics

The Cusco strap is manufactured from high quality materials and carefully constructed for strength & extra durability

but you'll be able to notice a difference

5LB aluminum flywheel

2) No cutting required to install these

Cusco Type OS Quick Release Lever Set Vehicle Model_SC 400 Properly designed valve springs willAn innovative and simple new item that enables performance without sacrificing the vehicle's daily rituals such as trunk space. The Quick Release system allows the middle center bar on your Cusco Type OS strut bar to be removed and replaced in seconds by hands, all without the use of any tools.