Looking for aftermarket parts to modify or upgrade your 2003 GMC Sierra 2500 HD with downpipe back? At Tunersports.com we carry a huge selection of the top name brand performance downpipe back parts and accessories for your Sierra 2500 HD.
Whether you have a 2003 GMC Sierra 2500 HD in Base to WT trim we have you covered. We have 1 downpipe back available to mod your Sierra 2500 HD. All parts have free shipping to the Continental US 48 States.
 IN STOCK - LOW 15399MagnaFlow Diesel Pipes are available for Cummins, Powerstroke and Duramax applications. Each downpipe, extension pipe, muffler delete and tailpipe is made of 100% stainless steel to ensure durability and mandrel-bent to ensure maximum performance gains. MagnaFlow Diesel pipes deliver reduced exhaust... MagnaFlow Down-Pipe 06-07 GM Diesel 6.6L 2001-2006 GMC Sierra 2500 HD SLE / SLT 2002-2005 GMC Sierra 2500 HD Base 2003-2006 GMC Sierra 2500 HD WT $187.00 |