AP Exhaust Exhaust Muffler P/N:2644

Quiet your truck's exhaust with the AP Exhaust muffler 2644, part of AP Exhaust's Challenge series. It's a direct-fit replacement for the 2011-2019 Chevrolet Silverado 2500 HD, 2011-2017 Chevrolet Silverado 3500 HD, 2011-2019 GMC Sierra 2500 HD, and 2011-2019 GMC Sierra 3500 HD, so replacing a 2011-2019 Chevrolet Silverado 2500 HD muffler is a direct swap on the listed applications.

• Noise control: as exhaust gas passes through, the muffler dampens the combustion noise carried down the exhaust system.
• Direct-fit application: replaces the original muffler on the listed heavy-duty Chevrolet and GMC trucks.
• Challenge series: AP Exhaust part number 2644 from the Challenge muffler line.

A muffler sits between the engine and tailpipe as part of the exhaust system. Louder-than-normal exhaust, a rattle from loose internal baffles, visible rust-through, or an exhaust leak can be signs the muffler may need replacing. If a worn or corroded muffler is the cause, the 2644 restores a sealed, quieter path for exhaust gas on the listed applications. Diagnose the source of any noise or leak before ordering, and see the Buyer's Guide tab to confirm the exact fit for your truck.