Deleting a 6.7 Powerstroke Instruction: Step-by-Step Guide

The Ford 6.7L Powerstroke diesel engine has been the backbone of Ford's Super Duty lineup since 2011, valued for its high horsepower, deep torque, and dependable towing power. Like other modern diesel engines, it relies on emissions systems—the DPF, EGR, and DEF—to reduce harmful output. 

Over time, these systems can become clogged, fail, and require expensive repairs. To avoid this, many drivers opt for a 6.7 Powerstroke delete, a process that involves removing the emissions equipment and reprogramming the ECU. With a quality delete kit, owners often experience improved performance and fewer breakdowns.

This guide covers how to delete a 6.7 powerstroke, costs, tuning, and FAQs to help you decide if this option is right for you.

What Does "Deleting" a 6.7 Powerstroke Mean?

My first 6.7 felt weak on hills. Emissions stole its strength. A delete gave it new life, but I learned the hard way what it all means.

Deleting a 6.7 Powerstroke removes factory emissions gear like the DPF filter, EGR valve, and DEF tank. This cuts restrictions, adds power, and raises MPG, but it's off-road only in most places.

• EGR (Exhaust Gas Recirculation) – lowers nitrogen oxide emissions but creates soot buildup that harms engine parts. The 6.7 Powerstroke EGR delete instructions below will explain how to block it safely.
• DPF (Diesel Particulate Filter) – traps soot in the exhaust but often clogs, reducing performance and increasing fuel use. Owners sometimes face problems if tuning is skipped.
• DEF (Diesel Exhaust Fluid) – part of the SCR system; pumps and injectors can fail and are expensive to repair. A full 6.7 DEF delete removes the tank and disables sensors.

Benefits of Deleting 6.7 Powerstroke EGR/DPF/DEF

Deleting a 6.7 Powerstroke DPF, EGR, and DEF systems will boost horsepower by 80-120 and improve MPG by 2-5. It takes 4-8 hours with basic tools, but check local laws first to avoid fines up to $4,500.

• More horsepower and torque from reduced exhaust backpressure.
• Smoother throttle response under load.
• 2–5 MPG fuel economy gains.
• Lower long-term maintenance costs.

Drawbacks of Deleting 6.7 Powerstroke

• Illegal for road use in most regions, with potential fines.
• Voids factory warranty immediately.
• Reduces resale options in emissions-testing areas.

Deleting a 6.7 Powerstroke: Preparation & Legal Considerations

Understanding Emissions Laws: Is Deleting a 6.7 Powerstroke Legal?

Deleting a 6.7 Powerstroke is illegal on public roads under federal law, with fines up to $4,500. Prep with a full kit, tuner, and off-road use to stay safe and legal.

In the U.S. and Canada, deleting a 6.7 Powerstroke is not legal for road use. The EPA prohibits tampering with emissions equipment, and enforcement has increased.

• Fines: Individuals can face thousands; some shops have paid millions.
• State laws: States like California, New York, and Colorado enforce strict emissions checks. Others, such as Texas and Florida, have lighter testing, but federal law still applies.
• Canada: Ontario and British Columbia require inspections so that a deleted 6.7 Powerstroke or any deletion of a diesel modification cannot pass.

Because of this, delete kits are marketed strictly as off-road or competition-only products.

Tools & Parts Needed

Have everything ready before starting:

• EGR delete kit (block-off plates, hoses, gaskets) for Ford F250 F350 F450 F550 6.7.
• Ford 6.7 Powerstroke DPF delete pipe (straight exhaust replacement).
• DEF delete parts (optional), often included in full delete kits.
• Tuner/programmer (EFI Live, SCT, Bully Dog, etc.). You'll need a EGR DPF delete tuner 6.7 Powerstroke to stop fault codes.
• Basic tools (sockets, wrenches, torque wrench, safety gear).
• Lifting equipment (jack stands or vehicle lift).

Tool/Part	Purpose	Cost Estimate
Socket Set	Bolt removal	$50
Delete Pipe	Replaces DPF	$300
Tuner	Reprograms ECU	$800
Block Plates	Seals EGR	$100

Full vs. Partial Delete

• Partial (EGR/DPF delete 6.7 Powerstroke) – Improves reliability, leaves DEF intact, smaller gains, less risk.
• Full (EGR + DPF + DEF) – Maximizes performance and efficiency but costs more and carries a higher legal risk.

Safety First

• Disconnect batteries.
• Let the exhaust cool completely.
• Wear gloves, goggles, and a respirator if cutting.
• Keep a fire extinguisher nearby.

Prep sets the stage. I spent a weekend gathering parts. Laws kept me cautious. Tools made it smooth. Full vs. partial? Go full if you haul heavy. Safety gear prevented cuts. My truck purred after.

Check the weather too—rain rusts new pipes. Forums helped me pick kits. Now, with prep done, tackle the steps. I felt ready after listing everything.

Step-by-Step 6.7 Powerstroke EGR & DPF Removal Process

Once you've prepared and gathered the right tools, the next step is removing the emissions systems. Below is a 6.7 Powerstroke EGR DPF delete instruction and the optional DEF removal steps.

While kits differ slightly, the general process is similar across model years.

6.7 Powerstroke EGR Delete Instructions Guide

To delete EGR and DPF on a 6.7 Powerstroke, disconnect battery, remove exhaust clamps, unplug sensors, and install delete pipes—takes 4-6 hours with a helper.

The EGR is one of the most failure-prone components. Deleting a 6.7 Powerstroke at the EGR stage prevents soot buildup in the intake and improves airflow.

Steps:

1. Disconnect both negative battery terminals.
2. Drain coolant into a clean container.
3. Remove intake piping, throttle body, and sensors.
4. Unbolt and remove the EGR cooler and valve assembly.
5. Install block-off plates at the exhaust and intake.
6. Reroute the coolant line using the provided hose.
7. Reinstall the intake piping and refill the coolant.

Time required: About 3–5 hours, depending on experience.

How to Remove the DPF Components on a 6.7 Powerstroke 

The DPF is heavy and connected to several sensors.

Steps:

1. Raise the truck with a lift or jack stands.
2. Disconnect all DPF sensors carefully.
3. Remove clamps and bolts holding the canister.
4. Slide it out and set it aside.
5. Install the 6.7 Ford Powerstroke DPF delete pipe.
6. Reconnect exhaust hangers and check alignment.

Note: Some owners report 6.7 Powerstroke DPF delete problems if the tuner is not configured to disable sensors properly.

Time required: About 2–3 hours.

6.7 Powerstroke DEF System Delete: Necessary or Optional?

The DEF system can also be removed as part of a full 6.7 Powerstroke EGR DPF DEF delete.

Steps:

1. Locate the DEF tank near the rear axle.
2. Remove straps and lower the tank.
3. Disconnect pump lines and connectors.
4. Cap or reroute lines as directed.
5. Disable DEF monitoring via the tuner.

Time required: 1–2 hours.

How Long Does It Take to Delete a 6.7 Powerstroke

DIY: 4-8 hours. Pros: 2-4. I took 6 with breaks. Rust adds time.

A full delete (EGR, DPF, DEF) typically takes 6–8 hours. A partial delete can be done in 4–5 hours. For those asking how long it takes to delete a 6.7 Powerstroke, this is the standard range for most trucks.

6.7 Powerstroke Post-Delete Requirements

Deleting the hardware is only half the battle. Without proper tuning and post-delete adjustments, your truck won't run correctly and will throw error codes. This section explains the essential steps to make sure a deleted 6.7 Powerstroke operates smoothly.

After deleting a 6.7 Powerstroke, reprogram the ECU with a tuner to erase codes, replace exhaust, and maintain oil every 5,000 miles for longevity.

ECU Tuning and Reprogramming

After removing the EGR, DPF, and possibly DEF, the ECU still expects signals from those systems. A 6.7 Powerstroke delete tuner is required to prevent limp mode. Popular options include:

• EFI Live – highly customizable, best for advanced users or custom tunes.
• H&S Mini Maxx V1 Tuner – user-friendly, with preloaded tunes designed for common delete kits.
• Bully Dog – combines tuning with real-time performance monitoring.

The tuner disables emissions-related fault codes, adjusts fuel and air ratios, and unlocks additional horsepower. For owners searching for what does delete mean on a diesel, this tuning step is essential to make the truck run correctly.

Fixing Check Engine Lights

Common codes after a delete include:

• P2002 – DPF efficiency below threshold.
• P0401 – EGR flow insufficient.
• P207F – DEF system quality issue.

A properly programmed tuner clears these permanently. Without it, deleting a diesel often leads to dashboard lights and poor drivability.

Maintenance Tips After Deletion

Even though you've removed failure-prone parts, a deleted truck still requires disciplined care:

• Change engine oil every 5,000 miles to manage soot buildup.
• Replace fuel filters every 15,000 miles. Some owners also consider a 6.7 Powerstroke fuel filter delete, though it is less common than emissions deletes.
• Inspect exhaust clamps and welds regularly for leaks.
• Monitor exhaust gas temperatures when towing heavy loads.

6.7 Powerstroke Engine Performance & Cost Breakdown

One of the main reasons truck owners consider deleting a 6.7 Powerstroke is the promise of better performance and efficiency. Removing emissions equipment reduces restrictions on the exhaust system, which directly improves airflow and combustion.

Deleting a 6.7 Powerstroke adds 80-120 HP and 2-5 MPG. DIY costs $600-900; pro $1,200-2,000. Full delete beats partial for max gains.

MPG & Horsepower Gains After Deleting

• EGR/DPF delete only: Owners often report horsepower gains of 40–60 HP and a fuel economy boost of 1–2 MPG.
• Full delete (EGR, DPF, DEF): Gains jump to 80–120 HP, with 2–3 MPG improvements.

For comparison, many ask how much HP a 6.7 Powerstroke has in stock form. Factory ratings are about 400 HP, but with a complete delete and proper tuning, it can easily reach 480–520 HP.

Towing Improvements

A deleted 6.7 Powerstroke vs stock doesn't just perform better on paper. Owners who regularly tow heavy trailers notice:

• Lower exhaust gas temperatures under load.
• Reduced turbo lag when accelerating uphill.
• Stronger and smoother throttle response during long hauls.

This makes a huge difference for work trucks pulling equipment or recreational rigs hauling RVs or boats.

Cost Breakdown: DIY vs. Professional

Many readers search for how much to delete a 6.7 Powerstroke. Costs depend on whether you do it yourself or hire a shop:

Delete Type	Difficulty	DIY Cost	Shop Cost	HP Gains
DPF only	Moderate	$600–900	$1200–1500	+40–60 HP
EGR + DPF	Advanced	$1000–1500	$1800–2200	+60–80 HP
Full (EGR/DPF/DEF)	Advanced	$1200–2000	$2000–3000	+80–120 HP

• DIY deletes are cheaper but require tools, patience, and technical know-how.
• Professional deletes cost more but reduce mistakes and usually include workmanship warranties.

Key Consideration

While deletes save long-term money by preventing expensive repairs (a new DPF alone can cost $2,000–$4,000), the upfront investment is significant. Owners comparing the best 6.7 Powerstroke delete kit options should weigh performance gains, installation costs, and the legal risks carefully before committing.

Best 6.7 Powerstroke Delete Kits (2025 Buyer's Guide)

Choosing the right kit is critical for smooth installation and long-term performance. Since Ford updated the 6.7 Powerstroke several times between 2011 and 2022, you must pick the best 6.7 Powerstroke delete kit designed for your truck's exact year and configuration.

Best 6.7 Powerstroke Delete Kits By Model Year

• 2013–2014 Models – Early trucks require coolant reroute support and specific exhaust connections. If you own one, you'll likely need a delete kit for the 2013 6.7 Powerstroke to ensure proper fit.
• 2015–2016 Models – Feature different flange designs, so confirm pipe fitment carefully. Kits labeled 2015 6.7 Powerstroke or a delete kit for 2016 6.7 Powerstroke are tailored for these updates.
• 2017–2019 Models – Ford changed sensor placements, so you'll need a delete kit for the 2017 6.7 Powerstroke to avoid wiring issues.
• 2020–2022 Models – Require the newest, most durable setups. Many truck owners specifically search for the best delete kit for 2020 6.7 Powerstroke or a delete kit for 2022 6.7 Powerstroke, which often feature stainless-steel pipes and improved welds.

What to Look For in a Delete Kit

1. Material Quality – Stainless steel lasts longer and resists corrosion better than aluminized steel.
2. Completeness – A reliable kit includes block-off plates, clamps, gaskets, reroute hoses, and bolts. Partial kits often leave you sourcing extra parts.
3. Tuner Compatibility – Ensure the kit you buy either includes a tuner or is compatible with EFI Live, SCT, or Bully Dog software.
4. Customer Support – Vendors that provide detailed installation instructions or video guides make the process much easier.

Average Kit Prices

• Partial delete kits (EGR + DPF only): $800–$1500.
• Full delete kits (EGR + DPF + DEF): $1200–$2000.

FAQs

How long will a deleted 6.7 last?

With proper maintenance, a deleted 6.7 Powerstroke can last 300,000+ miles. Removing failure-prone systems like the DPF and EGR often extends engine life.

Will delete 6.7 Powerstroke void warranty?

Yes. Performing a delete 6.7 Powerstroke modification immediately voids the manufacturer's warranty, including powertrain coverage. 

Can you pass emissions with a deleted 6.7 Powerstroke?

No. A deleted 6.7 Powerstroke cannot pass state or provincial emissions inspections. For road-legal trucks, only stock emissions equipment will meet EPA and provincial requirements.

What's the best tuner for a deleted 6.7 Powerstroke?

The right tuner depends on your goals:

• EFI Live – flexible, best for custom tunes.
• H&S Mini Maxx V1 Tuner – simple, popular with beginners.
• Bully Dog – combines tuning and monitoring.
  

These options are frequently paired with a DPF delete tuner 6.7 Powerstroke kit.

What is the biggest problem with the 6.7 Powerstroke?

The most common issues with stock engines include clogged DPF filters and failing EGR valves. These lead many owners to consider a DPF and EGR delete 6.7 Powerstroke or even a full deletion of a diesel setup for off-road use.

Final Verdict

Deleting a 6.7 Powerstroke diesel engine is not a casual upgrade; it is a major decision with long-term impact.

A 6.7 Powerstroke delete can unlock 80–120 extra horsepower, add 2–5 MPG in fuel economy, and improve towing power by reducing exhaust gas temperatures. Yet every gain has a cost.

A delete voids the warranty, lowers resale value, and is illegal on-road in most regions due to emissions laws. For off-road drivers, though, deleting the emissions systems offers clear rewards: stronger performance, faster throttle response, and greater reliability over time.

Success depends on preparation—choosing the best Powerstroke delete kit, pairing it with a quality tuner, and keeping up with strict maintenance. Prep well, tune right, and enjoy the ride. I never looked back.

About the Author- John Barrett

More Reading

• EGR and DPF Failure
• 6.7L Powerstroke Diesel Engine features
• Why Remanufactured 6.7 Powerstroke Engines Offer More for Less