Duramax

Read EngineGo’s expert blogs on GM Duramax diesel exhaust tuning, upgrades, and emissions knowledge. Get pro advice on enhancing power, efficiency, and sound for your Duramax-powered truck.
2017–2023 6.6L Duramax L5P: Specs, Improvements & Reliability
June 09, 2025 by Derek Miller

2017–2023 6.6L Duramax L5P: Specs, Improvements & Reliability

Diesel Engine · Duramax , Diesel Engine
This article provides a comprehensive look at the 2017–2023 6.6L Duramax L5P diesel engine, covering its core specifications, reliability factors, common issues, emissions components, and popular modification strategies. Whether you need to know how much horsepower a Duramax L5P has, understand maintenance considerations, or explore safe upgrade paths, this guide will answer your key questions about maximizing performance and dependability from your L5P.
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