GMC Sierra 2500 HD Mufflers
This page brings together mufflers for the GMC Sierra 2500 HD spanning model years 2001–2026, including direct-fit OE replacement units and chambered or stainless steel options. Select your year above and we'll show only the mufflers that fit your GMC Sierra 2500 HD. Fitment is checked against our vehicle data for every part listed.
AP Exhaust 2231 Challenge Series Aluminized Steel Direct-Fit Muffler
AP Exhaust 7680 Aluminized Steel Muffler Welded Assembly OE Direct-Fit Replacement
What's here for your GMC Sierra 2500 HD
- Exhaust Mufflers — individual replacement units in aluminized steel and stainless steel constructions, including direct-fit and performance chambered designs
- Exhaust Muffler Assemblies — complete bolt-on assemblies combining the muffler with associated piping for a more straightforward swap
The widest selection here comes from AP Exhaust, Flowmaster, Walker Exhaust, and Bosal, each offering a range of fitment styles and materials suited to the GMC Sierra 2500 HD across its model years. Other categories GMC Sierra 2500 HD owners shop for: GMC Sierra 2500 HD Shocks and Struts, GMC Sierra 2500 HD Exterior Lights and GMC Sierra 2500 HD Springs and Suspension Parts, or browse all GMC Sierra 2500 HD parts and accessories.