2007.5-2010 Duramax LMM 4" Downpipe Back Exhaust No Muffler (431011 / 432011) 2009 This tightly-sealed filter will trap

This tightly-sealed filter will trap airborne particles before they even enter the engine

cast aluminum end tanks and a larger less restrictive core structure

sometimes referred to as hen tracking

The cetane improver in EDT+ consists of special nitrates which are pro-oxidants

2007.5-2010 Duramax LMM 4" Downpipe Back Exhaust No Muffler (431011 / 432011) 2009 This tightly-sealed filter will trap2007. 5 2010 Duramax LMM 4" Downpipe Back Exhaust No Muffler (431011 432011) Constructed out of 16 gauge aluminized steel or T409 Stainless, this exhaust system is designed to simplify installation with included clamps, preweld contour bends and improved flanges. Enjoy a noticeable boost in performance, lowered EGTs and amplified air flow with this Flo~Pro system. For powerhouse performance, Flo~Pro delivers horsepower you can hear!