How Much Does It Cost to Delete a 6.7 Cummins?

Hi, I’m Lars, a diesel engineer at Spetuner. If you are reading this, you are probably tired of seeing "Perform Service" or "Exhaust Filter Full" on your dash. You want to know the 6.7 Cummins delete cost before you dive into the world of diesel performance. I’ve spent years designing and testing delete kits for Cummins, and today I’m going to give you the most honest, detailed breakdown of every cent you’ll spend in 2026.

Summary of Costs: For a 6.7 Cummins, expect to spend between $1,000 and $7,000+ depending on your truck's year and your goals. Older trucks (2007.5–2012) are the most affordable, with DIY delete kit prices starting around $1,000–$1,500. Middle-aged trucks (2013–2018) require DEF delete tuning, pushing costs to $1,800–$2,800. For the newest models (2019–2024), the locked ECM means you need advanced hardware, bringing the total delete cost to $3,500–$7,000 when including professional labor.

Why Is Deleting a 6.7 Cummins Required for Performance?

Technically, the EPA doesn't want you to do it. But from an engineering perspective, deleting a 6.7 Cummins is about unlocking reliability. The Exhaust Gas Recirculation (EGR) and Diesel Particulate Filter (DPF) are designed to capture soot. The problem? That soot eventually chokes the engine.

We also noted Reddit or Cummins diesel forums, where owners are constantly sharing their 6.7 Cummins emissions headaches. The most common "breaking points" that drive people to search for a delete kit include:

• The "Limp Mode" Panic: Reddit users frequently post about the dreaded "See Dealer Now" or "Service Exhaust System" messages that pop up while towing. There is nothing more stressful than a DEF countdown telling you your truck will be limited to 5 MPH in 50 miles.
• Regen Hell: Many owners report their trucks staying in active regeneration so often that their fuel economy (MPG) drops to single digits. As one user put it, "I’m spending more on diesel just to burn soot than I am on actually driving."
• Expensive Component Failure: The cost of a DPF replacement at a dealership can exceed $3,000, while a clogged EGR cooler can lead to massive repair bills. For most, the 6.7 Cummins delete cost is a one-time investment to avoid these recurring diesel repair costs.

By using all-in-one diesel delete kits, you remove these chokepoints. This results in lower EGTs (Exhaust Gas Temperatures), better fuel economy (MPG), and a much longer life for your diesel engine. You’re essentially reversing the "clogging" effect that happens over 100,000 miles of driving.

What Happens if You Don't Delete?

As an engineer, I often see owners hesitate because of the upfront 6.7 Cummins delete cost. However, staying stock is a gamble that usually ends in much higher financial losses. If you choose to keep the emissions equipment, you are essentially signing up for three types of inevitable "hidden taxes":

• The $5,000 Replacement Tax: The Diesel Particulate Filter (DPF) has a finite lifespan. Once it is too clogged to perform a regeneration cycle, a dealership will charge you between $3,000 and $5,500 for a replacement. That single repair is often double the cost of a full delete bundle.
• The Fuel Efficiency Tax: Every time your truck goes into active regen, it pumps extra raw diesel into the exhaust to burn off soot. This results in a 20% loss in fuel economy. Over 20,000 miles of driving at $4.00/gallon, staying stock literally "burns" about $800 - $1,200 of your hard-earned money every single year.
• The Engine Longevity Loss: By keeping the EGR system, you are allowing abrasive carbon soot to thin your engine oil. This leads to premature wear on piston rings and valves. The long-term loss isn't just a repair bill; it’s the thousands of dollars in resale value you lose when your engine starts "huffing" or losing compression early.

The Bottom Line: If you plan on keeping your truck past 100,000 miles, staying stock is a "ticking time bomb" for your wallet. The reliability gained from a diesel delete isn't just about power—it's about stopping the constant flow of money into the dealership’s service department.

Let's continue with what delete components are needed for the 6.7 Cummins engine:

1. EGR Delete Kits: $150 - $500 (Hardware Only)

The EGR system is responsible for taking dirty, hot exhaust and shoving it back into your intake manifold. This is like trying to run a marathon while breathing through a vacuum cleaner bag.

Why Is Deleting the EGR on 6.7 Cummins Required?

Over time, the EGR valve gets stuck with carbon. This causes poor idling and loss of power. Even worse, the EGR cooler can crack, leaking coolant into your cylinders and potentially hydrolocking your engine. A Cummins EGR delete kit eliminates these risks entirely.

Benefits of Cummins EGR Delete

• Cleaner Oil: Without soot being pumped back in, your oil stays amber-colored much longer.
• Better Throttle Response: Your turbocharger spools faster when it’s not fighting recycled air.
• Engine Bay Space: Removing that bulky cooler makes it much easier to work on your fuel lines or injectors later.

Cost of Deleting a 6.7 Cummins EGR

A basic block-off plate is about $150. A full EGR delete kit with a coolant bypass is roughly $300 - $500. Don't skimp here—cheap plates can leak, causing exhaust leaks that are a pain to fix.

2. DPF/DEF Delete Kits: Varies, Often Bundled

The DPF (Diesel Particulate Filter) and DEF (Diesel Exhaust Fluid) systems are the massive canisters under your truck. They are the most expensive parts to replace if they fail.

Why Remove the DPF?

The DPF creates massive backpressure. This backpressure pushes heat back into the turbocharger, which can lead to premature turbo failure. Removing it allows the exhaust to flow freely.

Benefits

You’ll gain an immediate 2-4 MPG increase. Plus, you’ll never have to buy that blue DEF fluid again. For a high-mileage driver, the DPF delete pays for itself in fuel savings within 18 months.

For a deeper dive, read our guide on the Pros and Cons of 6.7 Cummins DPF Delete.

Costs

A Cummins DPF delete pipe (straight pipe) is around $400 - $700. If you want a full turbo-back exhaust system, expect to pay $800 - $1,200, depending on the material (409 Stainless vs 304 Stainless).3. ECU Tuning (The "Brain"): $400 - $3,500+

If you remove the pipes but don't tune the truck, your Cummins will become a very expensive driveway ornament. Custom tuning is the software that tells the truck it’s okay to run without emissions equipment.

Why Tuning Matters

A good truck tuner doesn't just "delete" the codes. It optimizes fuel timing and rail pressure. This is where you get your horsepower (HP) and torque gains. For High Output Cummins models, the tuning also manages the higher boost levels safely.

Cost Breakdown

• Standard Pickups (2007-2012): Very affordable. Tuners like the Mini Maxx are around $400-$700.
• Standard Pickups (2013-2018): Moderate. EFILive or EZ Lynk setups run $900-$1,500.
• The 2019-2024 Locked ECMs: These are the "expensive years." You often need an ECM unlock tool or a full ECM swap. This process alone can cost $2,500 - $3,500.

4. Full Delete Bundles (Pickup vs. High Output vs. Chassis Cab)

Not all 6.7 Cummins engines are created equal. The High Output (HO) version found in 3500 pickups and the Chassis Cab (4500/5500) models have different requirements.

High Output (HO) Cummins Performance

The HO Cummins has a stronger transmission (the Aisin AS69RC). The delete cost is similar to the standard output, but the custom tunes are usually more expensive because they have to be calibrated for the Aisin’s specific shift points.

Chassis Cab Cummins Delete

A Chassis Cab delete is often more expensive because the exhaust downpipe and DPF pipe geometry are different from a standard pickup. You cannot use a regular 2500/3500 kit on a 4500 frame. Expect to pay a $200-$400 premium for Chassis Cab delete kits.

Finding the right parts shouldn't be a guessing game. Whether you are reviving a legendary 4th Gen workhorse or optimizing a brand-new rig, Spetuner offers full Cummins delete bundles for 6.7L from 2007-2025 models. We pride ourselves on being the first to market with all-in-one delete solutions that stay ahead of the latest ECM encryption, ensuring your 2025 Ram 2500/3500 gets the same level of performance and reliability as the older generations.

Choosing the best delete kit for 6.7 Cummins depends on whether you have a High Output or Standard model.

All-in-One Cummins Delete Kit (2013-2025)

Full DPF/EGR/DEF Solution

Stop dealing with limp mode. This all-in-one diesel delete kit includes everything you need: the truck tuner, DPF delete pipe, and EGR delete hardware. Engineered by Spetuner for a perfect fit.

$1,899.00

Buy Now

5. SOME OTHER DELETE KITS AND THEIR PRICES

To truly build a bulletproof Cummins, I always recommend these "add-on" components during the delete process:

• CCV Reroute Kit ($100 - $200): Prevents oil vapor from gunking up your turbo compressor. A must-have for diesel performance.
• Muffler Delete Pipe ($70 - $130): For those who want the "straight pipe" sound without a full system.
• Exhaust Downpipe ($250 - $450): Replaces the "crushed" factory pipe for better flow.
• Up Pipe Upgrade ($300 - $600): Stock up pipes are prone to leaking; stainless versions are much more durable.
• CAN BUS Plug Kit ($50 - $100): Protects your open electrical connectors from mud and water after sensors are removed.

6. Labor: $400 - $1,500 (Shop Rates)

If you aren't doing a DIY delete, you’ll be paying for shop time. Most diesel performance shops charge between $120 and $180 per hour.

A standard 6.7 Cummins full delete (EGR + DPF + Tuner) takes about 5 to 6 hours for an experienced tech. If your bolts are rusted (common in northern states), it can take 8+ hours. Budget at least $800 for labor to be safe.

Detailed Pricing Breakdown for 6.7 Cummins Deletes

As a Professional Diesel Engineer, I want this data to be as clear as possible. Use these tables to find your specific truck's total delete cost.

Cost by Engine Model & Year

This table shows how the total delete price scales with the complexity of the truck's computer system.

While the hardware side of a 6.7 Cummins delete can be a DIY project for those with basic mechanical skills, the software side requires precision. To help you succeed, Spetuner provides a detailed 2010–2024 Ram 6.7L Cummins EGR Delete Kit Installation Guide that walks you through the EGR removal and exhaust replacement steps.

Expert Tip: For newer 2019-2024 Cummins models, the ECM unlock and security gateway bypass are much more complex than on older 4th Gen trucks. If you are working on a late-model Ram 2500/3500, we strongly recommend consulting a professional diesel technician for the performance tuning phase to ensure your truck tuner is calibrated correctly without bricking the computer.

Delete Solutions Based on User Goals

Choose the path that fits your budget and what you want to achieve with your Cummins 6.7.

6.7 Cummins CCV Reroute Kit

Stop Oil Contamination

Keep your intake system clean and protect your turbocharger with this easy-to-install CCV Reroute kit. A mandatory upgrade for anyone performing a 6.7 Cummins delete.

$30.00-$150.00

Shop CCV Kit Now

Factors Influencing the Total Cost

When you are calculating your 6.7 Cummins delete price, don't forget these variables:

1. Year of the Truck

As mentioned, 2020+ models are significantly more expensive. This is because the Engine Control Modules (ECMs) are locked by the manufacturer to prevent performance tuning. Unlocking them requires expensive "bridge" hardware or shipping your ECM to a tech to be bench-flashed.

2. Quality of Material

Aluminized steel is cheaper but will rust in 2-3 years if you live in the "Salt Belt." Stainless steel delete pipes cost about 30% more but will last the life of the truck.

3. Custom vs. Box Tuning

A "box tune" is a generic file that works on every truck. Custom tuning (like EFILive or EZ Lynk) is written specifically for your modifications and tire size. Custom tuning is more expensive but provides a much smoother driving experience.

Conclusion: Is the 6.7 Cummins Delete Worth It?

After looking at the cost to delete a 6.7 Cummins, you might be wondering if it's worth the $2,000+ investment. As an engineer, I look at the ROI (Return on Investment). If you gain 3 MPG and fuel is $4.00/gallon, the kit pays for itself in roughly 25,000 to 30,000 miles. When you add in the fact that you'll never pay for a DPF replacement ($3,500), the delete kit is actually the cheapest way to own a diesel truck long-term.

At Spetuner, we are committed to providing all-in-one diesel delete kits that make this process as painless as possible. If you’re ready to unlock your truck’s true potential, check out our shop or contact us with your VIN for a personalized recommendation.

To weigh all factors, check out our article on the Pros and Cons of Deleting Your 6.7 Cummins.

FAQs: Common Questions About 6.7 Cummins Delete Costs

Q1: How much does it cost to do a delete on a 6.7 Cummins diesel truck?
A1: The range is $1,000 to $7,000. Most 2013-2018 owners spend about $2,200 for parts and labor.

Q2: Can I delete my truck without a tuner?
A2: No. If you remove the DPF without a truck tuner, the computer will put the truck into limp mode, limiting you to 5 MPH.

Q3: Does deleting a 6.7 Cummins increase horsepower?
A3: Yes. Simply removing the restriction adds about 40hp. With performance tuning, you can easily add 100-150hp over stock.

Q4: How much does labor cost for a full delete?
A4: Expect to pay $600 to $1,200 in labor at a professional shop.

Q5: What is the best tuner for a 6.7 Cummins delete?
A5: For 2007-2012, Mini Maxx is popular. For 2013+, EFILive and EZ Lynk are the industry standards for custom tuning.

Q6: Will I save money on fuel after a delete?
A6: Yes, most drivers see a 15-20% improvement in fuel economy because the truck no longer runs "regen" cycles.

Q7: Is an EGR delete expensive to install?
A7: The hardware is cheap ($150-$300), but the labor can be intensive because the EGR cooler is located in a tight spot.

Q8: What happens to the DEF tank after a delete?
A8: The DEF delete software turns off the pump and sensors. You can leave the tank on the truck or remove it to save weight.

Q9: Why are 2019+ Cummins delete kits so expensive?
A9: Because of the Bosch ECM encryption. You have to pay for "credits" and specialized hardware just to bypass the factory security.

Q10: Can I pass emissions with a delete kit?
A10: Generally, no. Delete kits are intended for off-road use only. If your state requires a visual or "sniffer" test, a deleted truck will fail.

Q11: Will my truck be loud after a delete?
A11: With a straight pipe, yes. If you keep the stock muffler or add a high-flow muffler, it remains relatively quiet but with a deeper tone.

Q12: Do I need a CCV reroute kit?
A12: You don't "need" it to run, but it’s highly recommended to keep your intercooler and turbo free from oil sludge.

Q13: How long does the installation take?
A13: For a professional, 4-6 hours. For a DIYer, expect a full 8-10 hours.

Q14: Is it legal to delete my truck?
A14: Delete kits are sold for "off-road use only" (racing, farming, etc.). Check your local state laws before driving on public roads.