Flowmaster 50 Series Delta Flow 3" in 2.5" Dual Out Universal Chambered Muffler 2004.5-2005 6.6l lly duramax aFe Power is the only

aFe Power is the only choice

Increased sound for aural satisfaction at full load

Fits SuperCrew only

Billet STEEL inner 700 input clutch drum

Faster Turbo Spool-Up

Flowmaster 50 Series Delta Flow 3" in 2.5" Dual Out Universal Chambered Muffler 2004.5-2005 6.6l lly duramax aFe Power is the onlyThe three chamber design utilizes Flowmaster's Delta Flow technology along with an internal tuning chamber to reduce sound inside the vehicle. Provides the same performance and exterior tone characteristics as the two chamber, but with less interior resonance. Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability. Features: Moderate Sound Mild interior resonance Excellent choice for Street Rod cars and trucks Improved