2017-2023 Duramax L5P 4" Cat & DPF Race Pipe No Muffler (431023) 2011 - 2016 GM Additives & Oils

2017-2023 Duramax L5P 4" Cat & DPF Race Pipe No Muffler (431023) 2011 - 2016 GM Additives & Oils2017 2023 Duramax L5P 4" Cat & DPF Race Pipe w Muffler (431023) 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: These kits will

9L Diesel (Non-HO Engines) with a factory performance

We do not recommend installing these nozzles without first testing your current injectors & balancing injectors as a set with the new nozzles installed

Every Melling high volume oil pump is engineered and assembled to the highest production standards from high quality materials

so it is important to set lash last

Part Type: Piston Rings

have the option of running the GDP Air-Boss 67 elevated intake plenum

4L together whether you're building a tow rig

25MM (224-3666WR-0

2017-2020 Duramax L5P 70 Degree Vented Turn Out Exhaust Tip (ST11070B)

all the way up to 4

These metal beads are reinforced with metal sheets to resist the component movement that arises from large fluctuations in temperature

7L Gator Fasteners HD Head Stud Kit (HSK5967C)