Valve Spring Kit
AMS VR38 Ferrea Single Valve Spring Kit with 1mm Oversized Performance Valves.
Ferrea Competition Plus 1mm Oversize Intake Valves for the R35 GT-R represent the highest level of sophistication in valve technology. We proudly offer their next generation of extreme heat resistant valves, specifically developed to withstand extremely brutal punishment. These valves set the standard for all Turbocharged, Supercharged, Nitrous Oxide, and compression restricted race motors.