15% GSC P-D Nissan GTR VR38DETT Single Conical Valve Spring & Titanium Retainer Kit (Race Only) GSC Power Division Sale! from 101275 119147 /per Qty. Add to Cart This item is either made to order or has limited inventory. Please reach out to confirm lead times if needed. GSC P-D Nissan GTR VR38DETT Single Conical Valve Spring & Titanium Retainer Kit (Race Only)