1992 GMC Topkick Mufflers
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- Walker®Heavy Duty Steel Round Truck Aluminized Exhaust MufflerGMC C6000 Topkick with Code # C6D / with Code # C6H 1992, Heavy Duty Steel Round Truck Aluminized Exhaust Muffler by Walker®. Muffler Inlet Diameter: 2.5". Muffler Outlet Diameter: 3". Muffler Body Length: 29". Muffler Overall Length:...Makes installation quick and easyOptimal OE-style fit and quality$272.77