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60 percent over nozzles
Apply a small amount of Driven Assembly Gel to wrist pins
This conical design offers enhanced stability for moderate cams and OEM-size valves
and are rated to handle 1500+ HP
4L 4" Turbo Back Exhaust w/ Muffler (421010)
2007-2012 Cummins 6.7L 4" Cat & DPF Race Pipe w/ Muffler (411035) Material:Aluminized 60 percent over nozzles2007 2012 Cummins 6. 7L 4" Cat & DPF Race Pipe w Muffler (411035) 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!