Tech
Like any VGT, the L5P/L5D factory turbo can develop vane and actuator issues over time. Here's what to watch for and what typically causes it. Quick answer: The two most common L5P/L5D turbo issues are vane sticking from carbon/soot buildup...
The factory L5P/L5D turbo is a Garrett-sourced variable-geometry turbocharger (VGT) fitted to the 2017–2023 6.6L Duramax. If someone mentions the "VGT" on a newer Duramax tow rig, this is the turbo they mean. Quick answer: The L5P/L5D factory turbo is...
Can you keep the factory exhaust brake with a 2019–2024 6.7 Cummins turbo upgrade? Yes — here's why a VGT drop-in retains it, and what to avoid.
The best turbo upgrade for a 2019–2024 6.7 Cummins: the TNT HE300VG 63mm drop-in — more airflow, lower EGTs, factory VGT and exhaust brake retained.
How to upgrade a 2019–2024 6.7 Cummins turbo and stay road-legal — retaining DPF/DEF/EGR, plus Canada vs US rules after the post-2020 crackdown.
High Output vs Standard Output 6.7 Cummins — power, transmissions, and what it means for a 2019–2024 turbo upgrade and towing.
Will a 2019–2024 6.7 Cummins turbo fit your truck? How the HE300VG differs from 2007.5–2018 — calibration, actuator, and choosing the right drop-in.
How to upgrade your 6.7L Cummins turbo while staying emissions-legal — what compliance means, how Canada and the US differ, and why a VGT drop-in keeps you road-legal.
Where the stock HE300VG runs out of airflow, the signs you've outgrown it, and the upgrade paths — billet wheel or drop-in — that raise your 6.7L Cummins power ceiling.
Why HE300VG vanes stick and how to prevent it — driving habits, exhaust-brake use, oil, and winter care that keep your 6.7L Cummins VGT moving freely.
The supporting mods that make an HE300VG upgrade work — tuning, exhaust, fuelling, EGT monitoring, and oil drainage — with reliability and emissions-legal operation in mind.
A buyer's guide to HE300VG drop-in turbo upgrades — what to look for, how they compare to the stock unit, and why the True North Turbos HE300VG 63mm fits 2007.5–2018 6.7L Cummins.
How a billet compressor wheel and a proper rebuild upgrade the HE300VG — better airflow and durability — and when to rebuild versus fit a drop-in replacement.
HE351VE vs HE300VG — how the two 6.7L Cummins variable-geometry turbos differ by year, design, and performance, and which drop-in upgrade fits 2007.5–2018 trucks.
What the HE300VG turbo is, which 6.7L Cummins trucks it fits, how its variable geometry works, and the specs and quirks every owner should know.
HE300VG actuator and VGT problems explained — symptoms, fault codes like P003A, how to diagnose sticking vanes, and whether to clean, replace, or upgrade your 6.7L Cummins turbo.
High exhaust gas temperatures (EGTs) are one of the most common concerns among tuned and towing-focused 2017-2023 6.6L L5P Duramax owners. Excessive EGTs can reduce reliability, increase turbocharger stress, and place additional heat load on pistons, valves, and exhaust components....
Choosing the right turbocharger for your 2017-2023 6.6L L5P or L5D Duramax depends heavily on how the truck is used. Two of the most popular drop-in turbocharger configurations for the L5P platform are the 64/67 and 67/67 setups. Both turbochargers...
The 2017-2023 6.6L L5P Duramax is one of the most capable diesel truck platforms GM has ever produced, offering impressive towing capability, strong factory power, and excellent drivability. However, once heavy towing, performance tuning, larger tires, or increased fueling are...
If you tow heavy on a regular basis, you already know the factory turbo on a 6.7 Cummins can become a weak point over time. Heat, drive pressure, sticky vanes, and sluggish response under load all start to show up...
