2017-2019 Duramax L5P Cab & Chassis 4" Downpipe Back Exhaust w/ Muffler (431024)2017 2019 Duramax L5P Cab & Chassis 4" Downpipe Back Exhaust w Muffler (431024) 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! IMPORTANT NOTE:

2011-2014 Powerstroke 6

better vanes

ARP has provided an extra measure of security in the form of extra-strong head studs manufactured from the firm's proprietary Custom Age 625+ material that has a minimum rating of 260

Meets NHRA racing safety requirements

7L Reman Stock CP3 Pump (DDPCP3-334)

or performing general head work

this additive provides an extra layer of wear protection and enhanced lubrication

335" from Piston Top (224-3520WR)

Upgrade to our Extreme Duty Pushrods and confidently unleash the full potential of your high-horsepower Cummins 6BT without worrying about valvetrain failure

MAHLE Original® head sets give you original equipment form

7L EZ LYNK SOTF CCV Switch (FTCUMMINSTITAN)

4L Up-Pipes w/Gaskets & O2/EBP Sensor Bungs Race (622001)