If you’re considering deleting your 6.7L Powerstroke, you’re not alone. This is one of the hottest topics among diesel owners today.
In a nutshell: deleting brings noticeable performance gains, but it comes with legal and warranty risks. Whether it’s worth it depends on your goals and how you use your truck.
What Does It Mean to Delete a 6.7L Powerstroke?
What Systems Are Deleted? (DPF, EGR, DEF)
A “delete” means removing or bypassing emissions control systems like the DPF (diesel particulate filter), EGR (exhaust gas recirculation), and DEF (diesel exhaust fluid) system.
With these parts gone, exhaust flow improves and the engine runs cleaner—at least from a performance perspective.
Why Do Truck Owners Consider Deleting?
Many owners delete for more horsepower, better throttle response, and improved fuel economy.
Some do it to avoid costly repairs down the road, especially once emissions parts start failing after the warranty.
Pros and Cons of Deleting a 6.7L Powerstroke
Benefits of Deleting (Performance, Maintenance, MPG)
Deleting your truck frees up horsepower and torque you can actually feel on the road.
Fuel economy often improves, with many drivers reporting 2–4 MPG gains.
You’ll also spend less time and money maintaining or repairing emissions components.
Downsides and Risks (Warranty, Legality, Resale Value)
The big downside? Deleting is illegal on public roads in most regions.
You risk hefty fines and will almost certainly void your factory warranty.
If you ever want to sell your truck or pass an inspection, a deleted setup can complicate things.
How Much Horsepower Does Deleting a 6.7 Powerstroke Add?
Real-World HP Gains
On average, deleting with a good tune adds 80–120 extra horsepower, sometimes more with supporting mods.
It’s not just about peak numbers—throttle response and low-end torque both improve, making towing or hauling much easier.
Supporting Modifications Needed
For best results, pair your delete with a quality tuner and upgraded exhaust. That way, you unlock the full potential of your Powerstroke.
How Many Miles Can You Get Out of a Deleted 6.7 Powerstroke?
Impact on Engine Longevity
With regular maintenance, many deleted trucks run well past 200,000 miles.
Without EGR and DPF, there’s less soot buildup and fewer restrictions, which is generally easier on the engine.
Maintenance Considerations
You still need to keep up on oil changes and check for leaks or codes. Skipping basic maintenance shortens any diesel’s lifespan—deleted or not.
How Many MPG Does a Deleted 6.7 Powerstroke Get?
Before and After MPG Comparisons
Many drivers see fuel economy improve after deleting—often by 2 to 4 MPG, depending on driving habits and load.
Real-world results vary. City driving might show less gain, but highway and towing numbers usually look much better.
Factors Affecting Fuel Economy
Keep in mind, mods like bigger tires or aggressive driving habits will offset any MPG gain from a delete.
Consistent tune-ups and reasonable speeds are key to maximizing your truck’s fuel savings.
Is it Illegal to Delete a 6.7 Powerstroke?
Federal and State Laws
Deleting emissions systems is illegal for on-road vehicles in the U.S. and most other regions.
Penalties can include steep fines for both drivers and shops that perform the work.
Consequences of an Illegal Delete
A deleted truck may fail inspection or registration renewal. You also risk trouble if you’re ever involved in an accident or resale.
If your truck is for off-road use only, make sure you understand local laws and requirements before deleting.
Should You Delete Your 6.7L Powerstroke?
Who Benefits Most from a Delete?
Off-roaders, ranchers, and anyone using their truck in non-road applications gain the most from a delete.
If you’re out of warranty and ready for a performance jump, deleting can be tempting.
Who Should Avoid It?
If you rely on your truck for daily driving, or need to pass emissions checks, it’s usually best to stay stock.
Anyone worried about resale or running afoul of the law should think twice before deleting.
Frequently Asked Questions About Powerstroke Delete
Q: Will Deleting Affect Engine Life?
Done right, deleting can actually help engine longevity by reducing soot and heat—but only if you keep up with routine maintenance.
Q: Can My Truck Pass Inspection After a Delete?
Almost always, a deleted truck will fail emissions inspection. You may need to reinstall stock parts to pass.
Q: How Much Does a Complete Delete Cost?
Expect to spend $1,500–$3,500, depending on the kit and tuner you choose.
Q: What Tuning Is Required?
A specialized tune is required to run properly after deleting emissions components. Don’t skip this step.
Final Thoughts and Recommendations
Deleting a 6.7L Powerstroke delivers serious power and efficiency gains, but comes with big legal and warranty risks.
Weigh your needs carefully. For off-road use, deleting makes sense. For everyday drivers, sticking with emissions equipment may be the safer bet.
Have questions or need help choosing parts? Reach out to a pro installer for advice tailored to your truck.
