40 Series - 2.50 Offset In / 2.50 Center Out - Aggressive Sound 2013-gmc-sierra-2500-hd-slt-esi3842735 Snap-On Color and Beam Changing

Snap-On Color and Beam Changing Covers Available

This is a performance and ride-enhancing kit that will really surprise you with how well it rides and performs both on and off-road

5 SG-BLK MILL +12

Premium Clamps and a Silicone Coupling Provide a Secure Seal

5-1/4" - 2-way

40 Series - 2.50 Offset In / 2.50 Center Out - Aggressive Sound 2013-gmc-sierra-2500-hd-slt-esi3842735 Snap-On Color and Beam ChangingThe Original 40 series muffler delivers an aggressive exterior and interior tone. If you're looking for that original Flowmaster sound, this is the muffler is for you. Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability.