Flowmaster FlowFX Muffler 2.5" In Offset/Out Offset H778C42S 9 x 9 in Square

9 x 9 in Square

The tip is covered by Flowmaster's 3 year warranty

A “captured” 1/2"-13 nut eases engine installation

2008-2010 Hummer H3

28 in Rectangular Port

Flowmaster FlowFX Muffler 2.5" In Offset/Out Offset H778C42S 9 x 9 in SquareThe FlowFX series muffler delivers a moderate performance sound level for the enthusiast looking for an exhaust tone that is different from the "chambered" muffler sound that Flowmaster is famous for. These straight through style mufflers feature a 409S stainless steel case and the quality you would expect from Flowmaster. Vehicle Applications: 1988 1993 Chevrolet C2500 1988 1993 Chevrolet K2500 1988 1993 GMC K1500 1975 1980 Chevrolet K10 1975 1981