aFe LARGE Bore HD Exhausts Cat-Back SS-409 EXH CB GM Diesel Trucks 01-

The Large Bore HD Performance Cat-Back exhaust features 4" 409 stainless steel tubing with smooth curves and increased size to help remove restriction and keeps exhaust gasses flowing smoothly. The OE style band-clamps and bayonet style hangers make sure this system installs cleanly and easily. You will see increased performance and lower EGTs from this system. This system does not come with a tip.This Part Fits: Year Make Model Submodel 2001-2005 Chevrolet Silverado 2500 HD Base 2001-2005 Chevrolet Silverado 2500 HD LS 2001-2005 Chevrolet Silverado 2500 HD LT 2004-2005 Chevrolet Silverado 2500 HD WT 2001-2005 Chevrolet Silverado 3500 Base 2001-2005 Chevrolet Silverado 3500 LS 2001-2005 Chevrolet Silverado 3500 LT 2004 Chevrolet Silverado 3500 WT 2002-2005 GMC Sierra 2500 HD Base 2001-2002 GMC Sierra 2500 HD SL 2001-2005 GMC Sierra 2500 HD SLE 2001-2005 GMC Sierra 2500 HD SLT 2003-2005 GMC Sierra 2500 HD WT 2002-2005 GMC Sierra 3500 Base 2001-2002...