Flowmaster Super 44 Series 3" Center In 2.25" Dual Out Universal Muffler 2019-2023 GMC Sierra 1500 flowing into a pair our

flowing into a pair our new FlowFX "straight-through" mufflers for a deep and powerful sound

Not only can this programmer add horsepower

It's a minimal amount and shown in our instructions

(fan adjustment 2009-2010 only)

Flowmaster Super 44 Series 3" Center In 2.25" Dual Out Universal Muffler 2019-2023 GMC Sierra 1500 flowing into a pair ourFlowmaster'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