RWA1235 Big Bore 2.3L Throttle Body. You can add this adaptor and 65mm throttle body to your 2.3L EFI engine and increase the air intake by 20-35%. You will add 9-16HP. IT is a must for all you T-bird Turbo Coupes and SVO owners. It comes complete with throttle body, linkage adaptor, manifold adaptor, TPS hookup and bolts with gaskets. You must add one to your induction. Pictured w/TPS & IAC selenoid but are not included!!