RTEC44001 / 44001 - Application Notes 86-90 Chevrolet Camaro & Z28 305/5.0L - 3" systems systems - Engine Code F 86-92 Chevrolet Camaro & Z28 350/5.7L - 3" systems systems - Engine Code 8 86-91 Chevrolet Corvette 350/5.7L (Except ZR1) 86-90 Pontiac Firebird 305/5.0L - 3" systems - Engine Code F 86-92 Pontiac Firebird 350/5.7L - 3" systems - Engine Code 8de 8