GSC Dual Valve Spring and Ti Retainer Set FA 802008270 Some additional NVH should be

Some additional NVH should be expected

Metal oil supply pipe directs oil from the top of the cylinder head to the AVCS oil control valve and turbocharger

Thickness = 30mm

The COBB Redline carbon fiber intake blends performance and aesthetics

GSC Dual Valve Spring and Ti Retainer Set FA 802008270 Some additional NVH should beKEEP YOUR VALVES UNDER CONTROL GSC's dual valve spring kit is their most extreme valve spring option for the FA20. Dual springs feature a heavier outer spring that handles the primary load requirements together with a lighter inner spring for added stability and control. A slight interference between the two springs helps dampen spring oscillations for more accurate valve control at very high rpm. The combined springs offer a high closing pressure