The L5P was introduced in 2017 and is the newest version of the Duramax 6.6L diesel engine family. We offer tons of awesome, insightful content for the L5P Duramax. Don’t miss our guides like the best Duramax L5P performance upgrades and DPF delete guide. Scroll down for more articles and information on the GM 6.6L L5P diesel engine.
In our 5 Best Duramax L5P Mods guide, we covered downpipes as our favorite exhaust upgrade. While a larger DPF-back exhaust system will provide solid sound gains, the biggest power gains within the exhaust actually come from upgrading the downpipe. Additionally, there are a number of ancillary benefits like lower EGTs and less exhaust backpressure…
With the same displacement but different fuel types, the 6.6L gas L8T and the 6.6L Duramax diesel L5P engines certainly make a name for themselves when it comes to pulling their weight. Choosing between them, however, can be a much harder task. If you’re not sure which 6.6L V8 motor to choose for your work…
The L5P is loaded with emissions equipment: selective cat reduction, diesel exhaust fluid, diesel particulate filter, diesel oxidation cat, and exhaust gas recirculation. The L5P doesn’t have a whole lot of common problems with its emissions systems, but they are very expensive to replace when they do break and they are restrictive to performance. Deleting…
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…
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…
