News
Catch up on the latest product information, installation explanations, news, events, new technologies, and more exciting content through DPFexhaust's blogs.
LMM Duramax P0401 & P0404 Explained: Common EGR System Failure Patterns
P0401 and P0404 codes on LMM Duramax engines are often linked to internal EGR system wear. Learn how these failures develop and why they frequently trigger reduced power mode.
Diesel Exhaust Drone Explained: Cabin Resonance During Highway Towing
Exhaust drone is not just about loudness. Learn why diesel trucks often experience low-frequency cabin resonance while towing and how exhaust system design affects in-cab comfort.
LML Duramax Off-Road Reliability Guide (2011–2016): Farming & Competition Use
For farm and off-road operators, reliability matters more than comfort. This guide explains why modern LML Duramax systems struggle in harsh environments—and how experienced users plan for dependable operation.
How to Install EZ Lynk - Step by Step Guide
This step-by-step guide walks you through how to install EZ LYNK tuner.
LML Duramax Performance Guide (2011–2016): Airflow, Sound & Reliability Explained
Before increasing power on an LML Duramax, it’s critical to understand airflow, sound behavior, drivetrain limits, and fueling risks. This guide breaks down what performance enthusiasts often overlook.
Cheap 2004.5-2007 5.9 Cummins Turbo-Back Exhaust: Why T409 Stainless Beats Aluminized
Searching for the cheapest cat delete pipe for your 2004.5-2007 5.9L Cummins? Don't fall for aluminized traps. Learn why T409 stainless steel offers the lowest lifetime cost and best performance.
2005 5.9 Cummins 4-Inch Stainless Steel Exhaust: The Heavy-Duty Choice
For a 2005 Ram 2500 that works for a living, you need an exhaust that lasts. We explain why T409 Stainless Steel beats aluminized tubing every time and why you...
4 Inch vs 5 Inch Exhaust on 5.9 Cummins: Sound, Drone & The "Headache Zone"
The 5-inch pipe offers that legendary deep rumble, but does it come with a migraine? We analyze the specific RPM drone zones of 4" vs 5" exhausts and how body...
2006 Dodge Ram 5.9 Cummins 5-Inch Turbo Back Exhaust: The Ultimate Fitment & Sound Guide
The 2006 Dodge Ram 5.9L Cummins sounds legendary with a 5-inch straight pipe, but it's a tight fit under a Ram 2500. Read our guide on spare tire clearance, managing...
Is Deleting an LML Duramax Worth It for High Mileage Trucks? (200k+ Miles)
When your LML Duramax hits 200k miles, the DPF is often filled with ash, not just soot. Learn why replacing it is a waste of money and how a "conservative"...
