Tech
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Duramax owners cross-shopping generations often ask what actually changed between the 2004.5–2010 trucks and the 2011–2016 LML. Here's the turbo-focused breakdown. Quick answer: The LML (2011–2016) added a full SCR/DEF emissions system alongside the DPF carried over from the LMM,...
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Getting the most from an upgraded LML turbo means addressing the rest of the fuel and airflow system too. Quick answer: Custom tuning, an adequate lift pump, a free-flowing intake and exhaust, and EGT monitoring are the supporting mods that...
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If you're shopping for a turbo upgrade on a 2011–2016 LML Duramax, here's what to look for and why. Quick answer: The TNT 63.5mm Drop-In Turbo is built specifically for the 2011–2016 LML, supporting up to 700WHP for towing-focused and...
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The LML's stronger factory bottom end makes it a popular platform for power builds, but the factory turbo still has a practical airflow ceiling. Quick answer: The factory LML VGT is matched to the truck's stock output (commonly cited around...
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The LML's VGT is generally durable, but like any variable-geometry turbo it has known wear points worth knowing before they turn into bigger issues. Quick answer: The most common LML turbo issues are vane sticking from carbon/soot buildup and actuator...
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The LML is the 2011–2016 6.6L Duramax, and it was the first Duramax generation to pair a variable-geometry turbo with a full SCR (DEF) emissions system. Quick answer: The LML factory turbo is a Garrett-sourced variable-geometry turbocharger (VGT), commonly cited...