Tomei Camshaft - PROCAM - Nissan Silvia (R)PS13 S14 S15 SR20DE(T) Solid, 280 / 12.5mm Gauges Spring preload adjuster

Spring preload adjuster

and finally completed a muffler kit that we were satisfied with

Please Note: M10x1

By making the suspension and the body one BOX like a subframe

Patented after our already popular and dyno-proven MegaPower Headers

Tomei Camshaft - PROCAM - Nissan Silvia (R)PS13 S14 S15 SR20DE(T) Solid, 280 / 12.5mm Gauges Spring preload adjusterWhen opening the intake valve during high acceleration the G from the camshaft requires to send as much mixture to the cylinder, Intake, the shortest time possible. However if the speed is too high it can damaged the Valves, Valve Seats and Valve Springs if the Acceleration G is too high. The Asymmetrical profile design given to the camshafts will allow the Intake and Exhaust Valves to fulfill the target requirement with the wider duration and high