Radium adapter fittings allow an OEM fuel pressure regulator (FPR) or fuel pulse damper (FPD) to be reused with an aftermarket -8AN ORB fuel rail. This will also permit the unit to be clocked into the proper position. Anodized billet 6061 aluminum is safe for all fuels. Install Details: - Fuel rail must have a 8AN ORB female threaded port. Fitting Details: - 8AN ORB - 16mm Bore - 39mm Spacing - M6 Vehicle Fitment: - 4G63 Evolution VIII IX Includes: (1) Fitting

NOT CARB-APPROVED. ILLEGAL TO USE OR INSTALL IN CALIFORNIA. IF YOU LIVE IN CA, WE CANNOT SHIP YOU THIS ITEM AND YOU WILL BE CHARGED A 10% CANCELLATION FEE IF YOU ORDER. PLEASE LOOK FOR OTHER PRODUCTS WITH CARB APPROVAL.