COMPATIBILITY – Fits 1974-1981 Chevrolet Corvette; 1978-1981 Chevrolet Corvette; 1979-1979 Chevrolet Corvette; 1980-1980 Chevrolet Corvette; 1982-1982 Chevrolet Corvette GET THE RIGHT PART -- Before purchasing, research to ensure that the part will fit your vehicle; enter all vehicle information (year, make, model, engine and trim) for compatibility and check qualifier notes Large internal flow tubes improve exhaust flow and reduce backpressure Dyno proven to flow up to 700 SCFM Exclusive patented flow director channels exhaust flow and eliminates turbulence on most applications Fiberglass matting technology absorbs unwanted interior resonance but maintains a mellow tone 1.75-inch to 3-inch inlet / outlet configurations