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1988-2010 GMC Sierra 1500HD/2500HD/3500HD
Direct fit for 2001–2005 Chevrolet/GMC 6
Black coated 4 Inch Filter Back Single Side 4 Inch Filter Back
Muffler Inlet Location - Centered
Flowmaster Super 44 Series 2.5" Center In 2.5" Dual Out Universal Muffler ecodiesel 1988-2010 GMC Sierra 1500HD/2500HD/3500HDFlowmaster's Super 44 muffler uses the same Delta Flow technology found in our larger Super 40 mufflers. The Super 44 delivers a powerful rich tone and is the most aggressive, deepest sounding, highest performing four inch case street muffler we've ever built! Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability. Features: Noticeable interior resonance Recent two chamber improvement Race proven Delta Flow technology
