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Author: Austin Parsons

Duramax LBZ Downpipe Upgrade Guide
Duramax | LBZ

Duramax LBZ Downpipe Upgrade Guide

ByAustin Parsons May 30, 2023June 1, 2023

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…

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Duramax LML Downpipe Upgrade Guide
Duramax | LML

Duramax LML Downpipe Upgrade Guide

ByAustin Parsons May 28, 2023May 30, 2023

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…

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Duramax LLY Downpipe Upgrade Guide
Duramax | LLY

Duramax LLY Downpipe Upgrade Guide

ByAustin Parsons May 26, 2023June 1, 2023

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…

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