How Much Does It Cost to Fully Delete a 6.7 Cummins?

Here's the thing — a delete isn't just unplugging a sensor and calling it done. Your 6.7 Cummins has three interconnected emissions systems, and they all need to be addressed together for the truck to run clean and fault-free.

• EGR (Exhaust Gas Recirculation): Routes exhaust gases back into the intake to lower combustion temps. Causes soot buildup and intake fouling over time.
• DPF (Diesel Particulate Filter): Traps soot in the exhaust stream and periodically burns it off in regeneration cycles. Adds significant backpressure and kills fuel economy.
• DEF/SCR System: Injects diesel exhaust fluid into the exhaust to reduce NOx emissions. Adds an ongoing fluid cost and a whole separate system that can fail.

A proper full delete bundle includes an EGR block-off plate and coolant bypass, a DPF/CAT delete pipe or full exhaust system, and a tuner loaded with delete tune files. The tune is what tells the ECM to stop commanding those systems — without it, you'll have a dashboard full of DTCs and the truck may go into limp mode.

The generation gap in delete pricing is real, and it comes down to ECM complexity and emissions architecture. Let's break it down by year range.

The 2022–2024 trucks are in a category of their own. The ECM on these trucks requires a pre-programmed unit or an advanced bench flash solution — going to the dealership for ECM replacement alone costs $3,000+. A full delete bundle that includes a pre-programmed ECM sidesteps that expense entirely.

If you're pricing this out piece by piece, here's what each component will run you on a 6.7 Cummins. The Diesel Dudes Technical Team notes that bundling these components together consistently delivers better value than sourcing them individually — not just in price, but in fitment confidence.

• EGR Delete Kit: $137–$436 depending on generation. Includes block-off plates, coolant bypass fittings, and necessary hardware. 2013–2018 kits are typically more involved than first-gen units.
• DPF/CAT Delete Pipe: $200–$500 for a 4-inch pipe. Steps up to $600–$900 for a full 5-inch turbo-back exhaust system.
• Tuner + Delete Tune Files: $400–$800. This is where you get options — EFI Live AutoCal, EZ Lynk Auto Agent, or RaceMe Ultra are the primary platforms for Cummins applications.
• DEF/SCR Delete (2013+): Often handled within the tune itself, but some years require additional hardware like a DEF emulator or sensor relocation kit — budget $50–$150 for this.
• Full Delete Bundle (all-in): $1,500–$2,400 depending on model year and exhaust size included.

The DIY vs. shop decision comes down to your model year and your comfort level with ECM tuning. On a 2007.5–2018 Cummins, a full delete is a solid weekend project — plan for 4–8 hours of wrench time. You'll need basic hand tools, a torque wrench, and coolant catch equipment for the EGR coolant lines. The tuner handles the ECM side through the OBD-II port.

On 2019–2024 trucks, the ECM programming step gets more involved. Some tuning solutions require a bench flash — meaning the ECM comes out of the truck and gets flashed directly. That's still DIY-friendly if you follow the instructions, but it's a step up in complexity. If you're not confident pulling the ECM, factor in shop labor of $500–$1,500 for that portion alone.

The Diesel Dudes Technical Team's take: On first and second-gen trucks, DIY is absolutely viable with a quality bundle. On 2022+ trucks, the pre-programmed ECM bundles eliminate the bench flash entirely — the new ECM drops in and you're done. That's where the real DIY savings live on newer trucks.

A full delete bundle is the most straightforward path — everything you need, confirmed to work together, shipped as one package. Here's what's typically inside a quality 6.7 Cummins full delete bundle:

1. Tuner or Bench Flash Service: The brains of the operation. Platforms like EFI Live AutoCal V3, EZ Lynk Auto Agent 3, or RaceMe Ultra handle the ECM tune. Some 2022–2024 bundles include a pre-programmed replacement ECM instead.
2. EGR Delete Kit: Block-off plates, coolant bypass hardware, and all necessary gaskets and hardware. Year-specific fitment.
3. DPF/CAT Delete Pipe or Full Exhaust: Either a 4-inch delete pipe or a full 5-inch turbo-back system. The 5-inch option flows significantly better and is the preferred choice for any performance-oriented build.
4. Delete Tune Files: Calibrated specifically for your truck's year and configuration. Eliminates all emissions-related DTCs including P0401, P0087, and DPF/SCR fault codes.

The 2022–2024 Ram Cummins 6.7 Full Delete Bundle runs approximately $2,380 and includes shipping — versus $3,000+ just for an ECM at the dealership. The math is straightforward.

The upfront cost of a delete is one number. The ongoing costs you're eliminating are a different calculation — and that's where the real ROI lives.

What you stop paying for after a full delete:

• DEF Fluid: A working truck burns through DEF at roughly 1 gallon per 300–500 miles. At $10–$15/gallon, that's a real annual expense that disappears entirely.
• DPF Cleaning and Replacement: DPF cleaning runs $300–$500 per service. Full OEM DPF replacement on a 6.7 Cummins is $3,000–$5,000 in parts alone.
• EGR Maintenance and Repair: EGR cooler failures are common on the 6.7 Cummins — dealership repair bills routinely hit $2,600 or more per occurrence.
• Regen-Related Fuel Waste: Active DPF regeneration burns extra fuel. Eliminating regen cycles improves real-world fuel economy by 1–3 MPG on average.
• Reduced Oil Contamination: EGR recirculation introduces soot and combustion byproducts into the intake, accelerating oil degradation. Deleting EGR extends oil life and reduces engine wear.

The math over a 5–10 year ownership period adds up fast. A $2,000 upfront investment that prevents one EGR cooler failure and one DPF replacement has already paid for itself twice over.

Stellantis locked down the ECM on the 2022+ Ram trucks harder than previous generations. The standard OBD-II flash approach that works perfectly on 2007.5–2021 trucks simply doesn't work on these newer ECMs. That creates a fork in the road:

Option 1 — Dealership ECM Replacement: Have the dealer supply and program a new ECM. Cost: $3,000 or more in parts and labor, and that's before you've bought a single delete component.

Option 2 — Full Delete Bundle with Pre-Programmed ECM: Purchase a bundle that includes a purpose-built replacement ECM already loaded with delete tune files. The Diesel Dudes' Ram Cummins 6.7 Full Delete Bundle for 2022–2024 takes this approach — the new ECM drops in, the hardware installs, and you're done. Total bundle cost: approximately $2,380 shipped.

Option 2 isn't just cheaper — it's also cleaner. You get a purpose-calibrated ECM optimized for the delete rather than a stock unit with a patch tune. On these newer trucks, the bundle approach is the right call.

Nobody likes surprise line items. Here's what can catch you off-guard if you don't plan for it:

• Coolant: Removing the EGR cooler means draining and refilling the cooling system. Budget $30–$60 for fresh coolant — don't skip this step.
• EGT Sensor / Probe Kit: Many tuners work best with an Exhaust Gas Temperature sensor installed. It's not always included in base bundles — add $80–$150 if you need one.
• Throttle Valve Delete: The 6.7 Cummins has an intake throttle valve that can cause issues post-delete if left in place. A throttle valve delete kit runs $50–$100 and is worth adding to any 2007.5–2024 build.
• Pre-Existing DTCs: If your truck has active fault codes before the delete — especially codes unrelated to emissions — those need to be addressed before or during tune installation. A shop diagnostic hour runs $100–$175.
• Shipping: Budget kits from off-brand sources often don't include shipping. Quality bundles from reputable sources typically include it.

Add $150–$300 to your budget for these ancillary items and you won't be caught short mid-install.