Radium 8AN ORB Round Internal Hex Plug throttlebody \nProfiles can be used in

\nProfiles can be used in RWD SR20DET engines with solid lifter conversion

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Key Features: Precision machined EN30b steel

Platinum Racing Products works in conjunction with IRP to bring you nothing but the best

But of course some nice aftermarket Titanium ones would make the install look a bit nicer which are listed here:

Radium 8AN ORB Round Internal Hex Plug throttlebody \nProfiles can be used inThese adapter fittings are designed to be used in many Radium products including fuel rails, surge tanks, fuel pressure regulators, etc. However, they can be used in any application using a 8AN ORB (3 4" 16) O ring port.