2017-2023 Duramax L5P 4" Cat & DPF Race Pipe w/ Muffler (431031) Crate Engine This will not come with

This will not come with instructions and we will not "walk you through" it

9L Main Stud Kit (247-5403)

there are five bearings in the motor and gear assembly

Heavily modified P-Pump and upgraded turbo(s) are mandatory

120″ wall thickness

2017-2023 Duramax L5P 4" Cat & DPF Race Pipe w/ Muffler (431031) Crate Engine This will not come with2017 2023 Duramax L5P 4" Cat & DPF Race Pipe w Muffler (431031) 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! IMPORTANT NOTE: These kits will