4v Cobra swap ANY year 96-04
96-98 imrc's twin port 236-270 hp At wheels
99-04 tumbell port 256-276 hp At wheels
03-04 better head for tumbell port (Easy 30 hp over 96-98 heads)
Heads, cams, intake ( upper and lower), timing set, harness, computer.
Trans bolts up no prob. The most $...