If you tow with a 2019–2024 6.7L Cummins and want more airflow and lower EGTs without losing drivability, the exhaust brake, or your emissions-legal status, the best upgrade for most owners is a calibrated variable-geometry drop-in. Here's what to look for, and why the True North Turbos HE300VG 63mm is our pick for these trucks.

What "best" means for a tow rig

For a towing-focused truck, peak horsepower is rarely the point. What matters is:

• Airflow and lower EGTs on long, heavy pulls
• Fast spool and strong low-RPM response
• Retained exhaust brake for grade descents
• Emissions-legal operation (DPF/DEF/EGR intact)
• Drivability you can live with every day

A properly sized VGT drop-in delivers all five. An oversized fixed-geometry conversion can make bigger peak numbers but usually sacrifices spool, drivability, and the exhaust brake — the trade-off is covered in HE300VG vs Fixed Geometry Turbo.

Why the TNT HE300VG 63mm

The TNT HE300VG 63mm for 2019–2024 6.7 Cummins is built for exactly this brief:

• 63mm 2618 forged milled compressor wheel for improved airflow efficiency and reduced drive pressure
• Retains factory VGT functionality and the exhaust brake
• Lower EGTs under load and faster spool-up than the factory unit
• Direct bolt-in with no core charge
• Designed, machined, assembled, and balanced in Canada
• $3,599 CAD, with optional calibrated actuator configurations

Because it retains the emissions equipment, it keeps your truck road-legal — see Emissions-Legal Turbo Upgrades for the 2019–2024 6.7 Cummins. The benefit of the billet compressor wheel over a tired factory unit is explained further in Billet Wheel & Rebuild Upgrades.

HO or SO, tuned or stock

The 63mm drop-in suits both High Output (Ram 3500 / Aisin) and Standard Output (Ram 2500 / 68RFE) trucks — with the emphasis on EGT control for heavy HO towing and on spool and drivability for SO trucks. See HO vs SO 6.7 Cummins Turbo Upgrade Differences. Custom tuning is strongly recommended to get the most from the airflow, and the right supporting mods round out the package.

Where to buy

Get the 2019–2024 HE300VG 63mm drop-in, or browse the full TNT Cummins turbo collection. Not sure it's the right fit? Use the Turbo Spec Form.

Frequently asked questions

What is the best turbo upgrade for a 2019–2024 6.7 Cummins?

For most towing and daily-driven trucks, a calibrated variable-geometry drop-in like the TNT HE300VG 63mm — it adds airflow and lowers EGTs while retaining the factory VGT, exhaust brake, and emissions systems.

Is a bigger fixed-geometry turbo better?

Only for dedicated high-horsepower builds. For towing, a VGT keeps spool, drivability, and the exhaust brake.

Do I need a tune?

Custom tuning is strongly recommended to maximise airflow, drivability, and performance from the upgraded turbo.

Is there a core charge?

No. The TNT HE300VG drop-in requires no core charge.

How much is it?

$3,599 CAD, with optional calibrated actuator configurations.