2013-2018 Cummins 6.7L 4" Cat & DPF/SCR Race Pipe No Muffler (411025 / 412025) Material:Aluminized Gator Fastener's Black Oxide exhaust

Gator Fastener's Black Oxide exhaust manifold studs are 12

2001-2007 Duramax 4" Downpipe Back Exhaust w/ Muffler (431107 / 432107)

race truck or just a daily driver

Modified or dual CP3

2013-2018 Cummins 6.7L 4" Cat & DPF/SCR Race Pipe No Muffler (411025 / 412025) Material:Aluminized Gator Fastener's Black Oxide exhaust2013 2018 Cummins 6. 7L 4" Cat & DPF SCR Race Pipe No Muffler (411025 412025) 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!