2019-2024 Cummins 6.7L 4" Flex Pipe Back Single w/ Muffler (411028 / 412028)2019 2024 Cummins 6. 7L 4" Flex Pipe Back Single w Muffler (411028 412028) 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 Mel's system. For powerhouse performance, Mel's delivers horsepower you can hear!

With a commitment to quality

7L Hamilton Cams Fire Ring Gasket

will improve fuel economy and increase power by 50 RWHP over stock

Dodge Ram Cummins 1994-98 Second Gen 5

Great for power adders and maximum effort engines

Injectors are primarily intended for off-road use and are big enough to be ran with a 13mm P-pump

030 Piston With Rings

9L 4" Cat Back Single w/ Muffler (411109)

Air-Boss 67 elevated intake plenums are compatible with all stock style intake manifolds and the increased airflow provided by the Air-Boss 67 greatly reduces EGT's

rpm too high or spring pressure is too high

2011-2019 Powerstroke 6

7 Performance HD Valve Spring Set of 24 (360-1020)