The 5 Best Duramax L5P Performance Upgrades
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The 5 Best Duramax L5P Performance Upgrades

A handful of simple bolt-on performance upgrades can take the L5P past the 550whp and 1,200wtq territory.  We’re going to discuss how a few upgrades like tuning, an intake, exhaust, downpipe, and intake horn can add impressive power to the Duramax L5P. We’re going to discuss power limits of the engine along with supporting mods…

Duramax LML Cold Air Intake Upgrade Guide
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Duramax LML Cold Air Intake Upgrade Guide

A cold air intake is the second best performance modification for a Duramax LML, with the first being tuning. An intake will provide horsepower and torque gains through airflow increases, but will also increase throttle response and turbo spool, and add about 1-2mpg of fuel economy improvements. We’ve been installing intakes on Duramax trucks for…

How to Delete or Disable Active Fuel Management (AFM)
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How to Delete or Disable Active Fuel Management (AFM)

AFM or active fuel management is a GM/Chevy technology meant to improve gas mileage. AFM works by deactivating half of the engines cylinders under certain circumstances to reduce fuel usage. It essentially turns your V8 engine into a V4 which saves fuel. GM claims fuel improvements ranging from 5%-15% depending on the engine. So why…

The 3 Most Common Duramax L5P Engine Problems
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The 3 Most Common Duramax L5P Engine Problems

The Duramax L5P was introduced in 2017 as a replacement for the LML. While the engine uses the same 6.6L design, many major engine components were completely refreshed in order to increase power as well as engine reliability. The L5P has made great reliability improvements and is, in my opinion, the most reliable diesel engine…

Chevy Service Stabilitrak & Traction Control Lights

Chevy Service Stabilitrak & Traction Control Lights

Early to mid 2000’s Chevy trucks and suburbans have a common problem with the stabilitrak and traction control service lights appearing on the dash. For most truck owners, the warning lights occur frequently when the truck is idling and then disappears and reappears while driving. The “Service Stabilitrak” light will usually appear first and then…