2007.5-2012 Cummins 6.7L 4" Cat Race Pipe No Muffler (411009 / 412001) Material:Aluminized 018″ if cutting grooves in

018″ if cutting grooves in the head or block

In the case of the 2004

RPM Range: 1700-4500

7L Mahle Main Bearing Set -

7L Dirty Diesel EGR Delete Kit (067-EGR-A014)

2007.5-2012 Cummins 6.7L 4" Cat Race Pipe No Muffler (411009 / 412001) Material:Aluminized 018″ if cutting grooves in2007. 5 2012 Cummins 4" Cat Race Pipe No Muffler (411009 412001) 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!