No Internal packing to blowout. Super 44 Series Muffler - Flowmaster 942549 Race Proven Delta Flow Flowmaster 942549 Super 44 Delta Flow Aluminized Muffler (2.5" Id 2.5 Inch Offset Muffler Flowmaster'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. Deep Aggressive Sound Exhaust Note Noticeable... Race proven patented delta flow technology Flowmaster Super 44 Series Chambered Muffler Part # 942549 Be the first to write a review Super 44 - 2.50 Offset In / 2.50 Same Side Out - Aggressive Sound In Stock Free Shipping on orders over $149 Recent two chamber improvement
