null Skip to main content

6.7 Cummins

6.7L Cummins Performance Parts & Turbo Upgrades

Looking to upgrade your 6.7L Cummins (2007.5–present)? Diesel Power Source offers HE-Series Turbo Upgrades, Compound Turbo Systems, and High-Flow Exhaust Manifolds built to fix common 6.7 problems, lower EGTs, and unlock real performance from every 6.7 generation.

The 6.7L Cummins replaced the 5.9 in mid-2007 and has powered Ram heavy-duty trucks ever since — through three distinct generations of factory turbo and emissions configurations. The early HE351VE-equipped 2007.5–2012 trucks, the HE300VG era of 2013–2018, and the 5th generation lower-mount design from 2019–present each have their own upgrade path. From HE-series replacement turbos that fix VGT actuator failures to full compound kits that drop EGTs 200-400°F, we engineer and manufacture the parts that solve the issues these trucks are known for.

Popular 6.7 Cummins Performance Upgrades

From HE-series replacement and upgrade turbos to full compound kits, 3rd gen swap kits, and crack-resistant exhaust manifolds, Diesel Power Source engineers solutions for every 6.7 Cummins build. Drop EGTs 200-400°F under load, eliminate VGT actuator failures, and protect your engine for the long haul.

200-400°F Cooler EGTs

Critical for towing in heat, at elevation, or with bigger tires

Solves VGT Failures

Replace stuck factory actuators with engineered upgrades

Crack-Resistant Manifolds

Multi-piece HSMD castings with expansion joints

Made in the USA

Engineered, manufactured, and supported in Utah

Shop by 6.7 Cummins Generation

Why Upgrade Your 6.7 Cummins with Diesel Power Source Parts

Solves Common 6.7 Problems

Sticking VGT vanes, P003A and P226C codes, high EGTs under load, factory turbo failures — our HE-series upgrades, swap kits, and compound systems are engineered to fix the issues these trucks are known for.

Cooler EGTs Under Load

Compound turbo kits drop EGTs 200-400°F by improving combustion efficiency and pulling heat out of the cylinder. Stock-replacement HE-series upgrades drop EGTs measurably even on factory trucks.

Manifolds That Last

Multi-piece HSMD ductile iron with expansion joints absorbs the thermal stress that cracks single-piece factory and competitor manifolds. CFD-tested for up to 75% more flow, pressure-tested before every shipment.

Engineered, Not Resold

Every turbo and manifold is designed and manufactured in our Utah facility. CFD-validated for flow, dyno-validated for power, supported by the engineers who built them.

How to Choose the Right 6.7 Upgrade Path

Keep Emissions Intact

HE-series replacement or upgrade turbos (HE363VG, HE366VG) are direct bolt-in factory-style fits that maintain EGR, DPF, DEF, and the factory exhaust brake. Add-A-Turbo kits provide compound performance while keeping the factory turbo and emissions equipment in place.

3rd Gen Swap Path

Replace the factory T4i manifold and VGT with a DPS T3 or T4 manifold and an S300 or S400 turbo. Stays in the factory turbo location, no custom intercooler or exhaust piping needed. Modernized version of the older "2nd gen swap" approach.

Maximum Performance

Full compound turbo kits with two new DPS turbos. Biggest EGT drops, highest power capability, widest powerband. Plan supporting mods: head studs above 48 PSI, transmission upgrades around 400 RWHP, fuel system upgrades around 500-550 RWHP.

Fitment Checklist

  • ✓ Confirm year (2007.5-2012, 2013-2018, or 2019+) before ordering
  • ✓ Stock turbo: factory HE351VE on 07.5-12, HE300VG on 13-24
  • ✓ T4i exhaust flange on 07.5-2018; new 5G flange on 2019-2024
  • ✓ Notify us at order time if you have aftermarket intercooler piping

Install & First-Drive Notes

  • • Use new gaskets and quality hardware; torque in sequence on a cold engine
  • • Pressure-test the charge-air system before first start
  • • Re-torque manifold bolts after initial heat cycles per the install instructions
  • • Monitor boost, EGT, and drive pressure on initial towing runs

Helpful 6.7 Cummins Guides

Ready to compare options? Visit 6.7 Cummins Manifolds, HE-Series VGT Turbos, or jump to your specific generation: 2007.5-2012, 2013-2018, or 2019-present.

!
#1 RATED COMPOUND TURBO KITS - FREE SHIPPING ON ORDERS OVER $300 - MADE IN THE USA - BACKED BY INDUSTRY LEADING ENGINEERING - SHOP WITH CONFIDENCE -
DieselPowerSource

DieselPowerSource
Join the Diesel Power Source newsletter

Still thinking about it?

Sign up to receive exclusive content and be the first to know!

We care about your data in our privacy policy.