17-26 DURAMAX EXHAUST

2017–2026 L5P Duramax Exhaust Systems (Downpipe Back)

Race Pipe, 4 Inch, and 5 Inch Options Available
Please be sure to select the correct year for your truck.

These exhaust systems are built for 2017–2026 GM 2500HD/3500HD trucks equipped with the 6.6L Duramax L5P. Designed to replace everything from the downpipe back, these kits maximize exhaust flow, reduce restrictions, lower EGTs, and deliver a deeper exhaust tone while supporting higher horsepower builds.

Built to Last

Constructed from heavy duty T409 stainless steel for long term durability
Mandrel bent tubing for smooth flow and a perfect fit
Built to withstand high heat, road salt, and heavy towing use

Key Features

Mandrel bent T409 stainless steel construction
OEM style 4 bolt turbo flange for stock turbo fitment
Leak free sealing with strong flanges and quality clamps
Pre welded, contour bent hangers for factory style mounting
No sensor bungs for a clean, simple design and custom setups
Deeper exhaust tone and improved throttle response

Performance Gains

Improved airflow and throttle response
Lower exhaust gas temperatures (EGTs)
Supports upgraded turbos and higher horsepower builds
More efficient exhaust evacuation under load

Fitment

Compatible with:
2017–2026 Chevrolet Silverado and GMC Sierra 2500HD/3500HD
6.6L Duramax L5P
EC/CC, SB, LB, and dually configurations

Important Note:
These kits require the OEM style 4 bolt flange at the downpipe

Competition Use Notice

These exhaust systems are intended for off road and competition use only and may require aftermarket tuning. Buyer is responsible for ensuring compliance with local laws and regulations.