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Don't get left behind! Catch up on the latest product information, installation explanations, news, events, new technologies, and more exciting content through SPETUNER's blogs.
Does a 5.9 Cummins Have a DPF? A 2003–2007 Exhaust Guide
The 2003–2007 5.9L Ram pickup has no factory DPF. Compare replacement sections with turbo-back systems, confirm early versus late fitment, and check kit contents, pipe size, sound, and tuning needs...
Is a 2007 Cummins a 5.9 or 6.7? Here’s How to Tell
Identify the engine in a 2007 Ram with a practical VIN and engine-label workflow, then narrow your exhaust and cooling choices to the correct application.
Pros and Cons of Deleting a 2.8 Duramax: Is It Worth It?
Last reviewed: September 15, 2026 Quick Answer: Is Deleting a 2.8 Duramax Worth It? For a daily-driven highway truck in the U.S., deleting a 2.8L Duramax is generally not worth...
Best EGR Delete Kit for LLY Duramax (2004–2005)
Quick Answer: What Is the Best EGR Delete Kit for an LLY Duramax? The best EGR delete kit for an LLY Duramax is one designed specifically for the 2004.5–2005 6.6L...
5.9 Cummins Coolant Bypass: Is It Worth It for Your Truck?
Understand the cooling benefit a bypass is designed to provide, compare the installed-cost factors, and check SPEtuner’s 2003–2007 manual-transmission option.
Why Does My Truck Lose Power When Towing Uphill? 9 Causes and Fixes
Quick Answer: Why Does My Truck Lose Power When Towing Uphill? A truck that loses power when towing uphill may be overloaded, using the wrong gear, short on fuel pressure,...
6.7 Powerstroke CCV Delete vs Reroute: Which Should You Choose?
Quick Answer: 6.7 Powerstroke CCV Delete vs Reroute For most owners comparing modified CCV layouts, a properly sized reroute with an accessible catch can is the more controlled option because...
L5P CAN Bus Plug Guide: Purpose, Fitment and Locations
Quick Answer: An L5P CAN Bus plug is an electrical component used to address specific NOx and DEF module connections on a properly configured off-road or competition-use 6.6L Duramax. The...
What Is a Cat Delete? What It Removes and What Changes
What Is a Cat Delete? What It Removes and What Changes A cat delete means removing the catalytic converter from a vehicle’s exhaust system and replacing it with a straight...
6.0 Powerstroke Cat Delete Benefits and Problems: Is It Worth It?
A 6.0 Powerstroke cat delete is often discussed as a way to open up exhaust flow, hear more turbo whistle, and reduce heat. But the results are not the same...
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