350z DE Ferrea Titanium Valve Retainers - Dual Spring

These VQ35DE Titanium Retainers are 40% less weight than a stock Nissan 350Z retainer and twice as strong. By reducing the weight of the valve train it will improve the follow up response of the cam lobe @ higher RPM's. Also the lighter weight will allow you to rev the engine higher.

Will only work with Ferrea Dual Valve Springs.