Dynomax Super Turbo 17749 Exhaust Muffler Fits select: 1988-1993 CHEVROLET GMT-400, 1989-1993 GMC SIERRA

PREMIUM ACOUSTIC CONTROL -- Fiberglass matting absorbs unwanted interior resonance while maintaining a mellow performance tone PRECISION DESIGN -- Exclusive flow director technology channels exhaust flow and reduces turbulence on most applications; dyno proven to flow up to 550 SCFM PREMIUM PERFORMANCE -- Large flow tubes improve exhaust flow and reduce backpressure ENGINEERED TO LAST -- Aluminized-steel construction reduces corrosion and internal drainage system reduces moisture collection FLEXIBLE SOLUTION -- Customizable design offered in a variety of styles and sizes for universal fitment (may require specialized fabrication and/or welding) SPECS -- Available in a variety of body diameters; 1.75-in. to 3-in. inlet/outlet configurations; see product specifications for more information COMPLETE PERFORMANCE UPGRADE -- Use premium DynoMax accessories when installing DynoMax Super Turbo mufflers for a complete exhaust system upgrade BUY WITH CONFIDENCE -- Comes with DynoMax's limited lifetime warranty and exclusive 90-Day Performance & Sound Guarantee Additional Features Finish:Aluminized Muffler Type:Combination Fits Select: 1990-1993 CHEVROLET GMT-400 6 Cyl 4.3 L 1988-1989 CHEVROLET GMT-400 8 Cyl 5 L 1990-1993 GMC SIERRA 6 Cyl 4.3 L 1988 GMC GMT-400 8 Cyl 5 L 1989 GMC SIERRA 8 Cyl 5 L and more - add your vehicle to our fit widget to check