6.7 Cummins EGR DPF Delete Kit: Complete Buyer's Guide (2007.5–2024)

Here's the deal — the 6.7L Cummins was introduced mid-year 2007 with progressively heavier emissions equipment added across each model-year generation. By 2013, Ram trucks were running a full stack: EGR (Exhaust Gas Recirculation), DPF (Diesel Particulate Filter), DEF (Diesel Exhaust Fluid) injection, and an SCR (Selective Catalytic Reduction) catalyst downstream. Each system adds thermal load, restriction, and maintenance complexity.

A delete kit addresses all three at once. The EGR valve and cooler are removed and blocked off. The DPF and CAT are replaced with a straight-through delete pipe. DEF hardware is bypassed electronically, and the ECM is retuned to eliminate all fault codes associated with the removed hardware.

The Diesel Dudes packages these as year-specific full delete bundles ^[105] covering every Ram 6.7 Cummins generation from 2007.5 through 2024. Each bundle is spec-matched to your exact model year — the hardware differences between a 2010 and a 2019 truck are significant enough that a generic kit simply won't work correctly.

According to the EPA's Clean Air Act enforcement framework under 42 U.S.C. § 7522, tampering with or removing certified emissions control equipment on motor vehicles used on public roads is prohibited. Individual penalties can reach $5,000 per violation. These kits are marketed for off-road and competition use only. Check your local and state laws before proceeding.

What's Included in the Ram Cummins 6.7 Full Delete Bundle

• EGR Delete Kit — Block-off plates, gaskets, and hardware to remove the EGR valve and cooler and seal the intake and coolant ports ^[54]
• DPF & CAT Delete Pipe — 4" straight-through pipe replacing the factory DPF and downstream catalytic converter; weighs roughly one-fifth of the OEM assembly ^{[35][36][37][38]}
• Delete Tuner — Pre-loaded ECM calibration (EFI Live AutoCal V3, EZ LYNK Auto Agent 3, or RaceMe Ultra depending on your package) ^{[48][64][101]}
• DEF/SCR Bypass Hardware — Sensor simulators or wiring adapters to eliminate DEF fault codes on 2013+ trucks
• Coolant Reroute Kit — Re-routes coolant flow away from the deleted EGR cooler to maintain proper coolant circulation
• Throttle Valve Delete — Available for 2007.5–2024 trucks to remove the intake throttle restriction ^[115]
• Grid Heater Delete — Optional add-on for 2007.5–2024 6.7L Cummins ^[93]
• CCV Delete Kit — Crankcase Ventilation delete option for 2007.5–2024 trucks ^[30]

The Diesel Dudes bundles are assembled by generation so every component is confirmed to fit together. A 2013–2018 kit uses different EGR block-off geometry than a 2019–2021 kit — the coolant port locations and sensor provisions changed between generations. Ordering year-specific hardware eliminates the fitment guesswork entirely.

Disclosure: The Diesel Dudes sells some of the products mentioned in this article. Our recommendations are based on hands-on testing and customer feedback.

Fitment is the single most important factor when buying a delete kit. Get this wrong and you're returning parts. Here's the breakdown by generation:

Cab & Chassis configurations have unique exhaust routing requirements. The Diesel Dudes carries a dedicated Cab & Chassis Ram Cummins full delete bundle ^[29] for 2010–2021 trucks — the pipe length and hanger positions differ from standard crew and quad cab builds. If you're running a C&C, don't order the standard bundle.

These two systems fail for completely different reasons, but they're almost always deleted together. Here's the technical breakdown:

EGR (Exhaust Gas Recirculation) takes hot exhaust gas and routes it back into the intake manifold. The goal is lower combustion temperatures to reduce NOx output. The side effect is soot-contaminated oil, fouled intake ports, and a cooler that's prone to cracking under thermal cycling. The Diesel Dudes EGR delete kit for 2010–2024 6.7 Cummins trucks ^[54] replaces the cooler and valve with billet block-off plates, sealing the coolant ports and intake openings permanently. The 2007–2009 trucks use a slightly different EGR layout and require the generation-specific kit ^[53].

DPF (Diesel Particulate Filter) sits downstream in the exhaust and captures soot particles through a ceramic honeycomb substrate. The factory DPF on a 6.7 Cummins creates measurable exhaust backpressure as it loads with soot. The ECM manages this by triggering active regeneration cycles — injecting raw fuel into the exhaust to burn off accumulated particulate. The 4" DPF & CAT delete pipe replaces this entire assembly with a straight section of pipe that weighs roughly one-fifth of the OEM assembly. Available for every Cummins generation: 2007.5–2012 ^[35], 2013–2018 ^[36], 2019–2021 ^[37], and 2022–2024 ^[38].

Running just the EGR delete without a DPF delete (or vice versa) is possible, but the tune still needs to be calibrated to whatever hardware you've removed. The Diesel Dudes Technical Team recommends deleting both simultaneously to avoid multiple tune revisions and to get the most out of the ECM recalibration in a single pass.

The 6.7 Cummins ECM monitors every emissions sensor in real time. Pull the DPF differential pressure sensor, the DPF temperature sensors, the EGR position sensor, and the DEF dosing circuit — and the ECM logs multiple active DTCs immediately. Without a tune, you're running in a fault state from the moment you start the truck after install.

The Diesel Dudes offers three primary tuner platforms for the 6.7 Cummins:

EFI Live AutoCal V3 ^[48] — The most popular choice for 2007–2021 trucks. Shift-on-the-fly capability with multiple power levels. Tuning is pre-loaded by generation, plug-and-play via the OBD-II port.

EZ LYNK Auto Agent 3 ^[64] — Cloud-connected tuner with Wi-Fi tune updates. The EZ LYNK platform includes a Lifetime Support Pack option ^[70] that keeps your tune current as the software is refined. Available for 2007.5–2021 Cummins trucks.

RaceMe Ultra ^[101] — A touchscreen delete tuner with built-in data logging. Popular on the 2007.5–2018 platform for owners who want real-time EGT, boost, and fueling data on a single screen.

For 2022–2024 trucks, the tuning platform is more complex due to updated CAN bus architecture. The 2022–2024 Cummins Delete Tuning Kit ^[6] addresses this generation specifically — don't try to run an older-generation tune on a fifth-gen platform. The Shibby Engineering Tuner Harness Plug Kit ^[116] is also recommended for clean, reliable tuner connection on 2007–2024 Dodge Cummins trucks.

Bottom line: the tune does the performance work. The delete hardware removes the restrictions. You need both, full stop.

Here's how the two product tiers compare side by side:

The pricing jump on the 2022–2024 bundle reflects the significantly more complex ECM architecture on the latest Ram platform. Fifth-gen trucks require additional unlock tooling and more sophisticated tune development compared to earlier generations.

If you already own a tuner from a previous truck, call us at (888) 830-2588 before ordering — we can confirm compatibility and build a hardware-only bundle around your existing device.

This is where we give it to you straight, no marketing spin.

The federal Clean Air Act, specifically 42 U.S.C. § 7522(a)(3), prohibits any person from removing or rendering inoperative any emission control device or element of design on a certified motor vehicle after its sale. The EPA has actively enforced this provision, with penalty authority under 42 U.S.C. § 7524 allowing civil fines up to $5,000 per vehicle per violation for individuals. The EPA's National Enforcement and Compliance Assurance division has escalated enforcement activity against aftermarket defeat devices in recent years.

State-level risk compounds the federal picture. States with emissions inspection programs — California (under CARB regulations at 13 CCR § 2222), Colorado, New York, Texas, and others — require periodic OBD-II and visual inspections. A deleted truck will fail visual inspection the moment a technician looks for the DPF and doesn't find one. California's CARB enforcement is the most aggressive in the country; CARB-specific regulations prohibit the sale of defeat devices for California-registered vehicles under 13 CCR § 2222.

Warranty implications are also real. Ram's powertrain warranty is voided on any system modified by aftermarket tuning or hardware removal, per the Magnuson-Moss Warranty Act framework — the burden shifts to the manufacturer to prove your modification caused the failure, but for emissions hardware specifically, the connection is direct.

The bottom line on legality: these kits are sold for off-road, closed-course, and competition use. If your truck never leaves private property or a closed track, the legal analysis is different than a daily driver. Know your state's laws. We're not your lawyer — check with one if you're unsure.

Our technicians have walked hundreds of customers through these installs. Here's the realistic time breakdown by task:

EGR Cooler and Valve Removal (2–4 hours): This is the most labor-intensive part. You're disconnecting coolant lines, unbolting the EGR cooler from the cylinder head, removing the EGR valve from the intake manifold, and installing block-off plates at both connection points. On 2013–2018 trucks the cooler is more accessible than on the 2019+ platform. Budget the higher end of the range if it's your first time.

DPF & CAT Delete Pipe Installation (1–2 hours): The factory DPF assembly unbolts from the downpipe flange using 3/8" hardware — nuts, bolts, and lock washers. The delete pipe uses the same flange interface. Remove all emissions sensors from the factory assembly before you pull it; you'll need to reinstall the sensor bungs in the delete pipe (or plug them, depending on your tune). The 4" delete pipe weighs roughly one-fifth of the OEM DPF assembly, so handling it solo is straightforward.

Tuner Flash (30–60 minutes): Most OBD-II port tuners like the EFI Live AutoCal V3 ^[48] or EZ LYNK Auto Agent 3 ^[64] complete the initial ECM flash in under an hour. The EZ LYNK platform connects via Wi-Fi for tune updates and supports real-time monitoring after install.

The Cab & Chassis Ram Cummins delete bundle ^[29] requires extra attention to exhaust routing — C&C configurations have different hanger positions and pipe length requirements than standard crew cab builds. Add 30–60 minutes to your estimate for C&C trucks.

Total realistic home install time with a factory service manual and a basic hand tool set: 6–8 hours. Shop time with a lift: 4–5 hours.