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Duramax LBZ Downpipe Upgrade Guide

As the third entry into the Duramax family, GM had learned a few things about how to build a turbo diesel V8. Introduced halfway into the 2006 model year as a replacement for the outgoing LLY Duramax, the LBZ improved on a few notable design defects with the previous model. Additionally, the LBZ existed in…

Duramax LML Downpipe Upgrade Guide

By the time the 2010s rolled around, the Duramax engine was on its 6th iteration, the LML. As an extension of the LMM engine that introduced heavy emissions regulation technology to the engine, there are quite a few ways to improve on the 2011-2016 LML. That is actually a good thing, as the LML is…
Boosted Performance Duramax LLY Downpipe

Duramax LLY Downpipe Upgrade Guide

When the GM Duramax LLY was launched halfway through the 2004 model year, it represented a step forward in the Duramax diesel engine family. The LLY took the place of the outgoing LB7 Duramax and improved upon some of the LB7’s shortcomings. While the Duramax LLY was an unquestionable improvement over the LB7, it still…
LLY Duramax Cold Air intake from Banks Power

LLY Duramax Cold Air Intake Ultimate Guide

General Motors/Chevrolet produced the Duramax LLY 6.6L diesel V8 engine from 2004–2006. Depending on the mode, it produced 210–310 horsepower and 520–605 lb-ft of torque. It was the replacement for the LB7 V8 diesel engine, and was soon succeeded by the LBZ V8 diesel engine. While at the time, its 210–310 horsepower figure was decent,…
Duramax LB7 cold air intake from Banks Power

Duramax LB7 Cold Air Intake Ultimate Guide

The Duramax LB7 V8 engine is one of the most popular diesel platforms today. The LB7 lasted from 2001–2004, and was the first Duramax engine GMC released. From the factory, the Duramax LB7 produced 235–300 horsepower and a whopping 500–520 lb-ft of torque. While these were substantial power figures in the early-2000s when GM created…
8.1 Vortec Cylinder heads

Best 8.1 Vortec Upgrades and Mods

First released in 2001, the 8.1L Vortec – or Vortec 8100 – was one of the top platforms for GM truck owners for several years. Mostly used inside the Silverado/Sierra and Suburban/Yukon, the Vortec 8100 was a top engine for heavy duty trucks. It makes a healthy 320–340 horsepower and 440–455 lb-ft of torque depending…
Duramax LMM intake

Duramax LMM Cold Air Intake Guide

The Duramax LMM was a monstrous 6.6 liter diesel V8 that General Motors/Chevrolet used in their heavy duty lineup from 2007–2010. Depending on the year and model it was in, the LMM put down 250-365 horsepower and 460–660 lb-ft of torque. Yet, with just a few mods you can seriously transform your truck and make…
LMM Duramax Tuner Evolution CTS3

LMM Duramax Tuner Guide

From 2007–2010, the General Motors/Chevrolet Duramax LMM was one of the top V8 diesel engines on the market. Powering heavy duty trucks, SUVs, and vans, the Duramax LMM is essentially a Duramax LBZ but with some updated emissions equipment. Depending on the year and model, the Duramax LMM makes 250–365 horsepower and 460–660 lb-ft of…
Duramax LMM downpipe

Duramax LMM Downpipe Upgrade Guide

General Motors released the Duramax LMM 6.6 liter diesel engine midway through the 2007 model year as the successor to the Duramax LBZ. GM mainly introduced the LMM for emissions purposes, as it included a diesel particulate filter (DPF) and other new federally required emissions equipment. While the Duramax LMM makes more power than the…