Cat-Back Exhaust System1988-1993 GM Full-Size Truck 2WD/4WD 5.7L (With 3 in. Converter)All Wheelbases2.5 in. Aluminized Steel TuibingDual Exit Includes:(3) Pipes(2) Tailpipe Extensions(1) Muffler(11) Clamps(2) Hangers Hardware