Powerstroke Diesel Delete Kits: DPF EGR & DEF Delete Guide 2026

A delete kit covers three separate emissions systems that all interact with each other on modern Ford Powerstroke diesels. Here's the breakdown of what each system does and what gets replaced:

• DPF (Diesel Particulate Filter) — Captures soot from combustion. The delete replaces it with a straight-through pipe, eliminating backpressure and regen cycles.
• EGR (Exhaust Gas Recirculation) — Routes hot, soot-laden exhaust back into the intake to reduce NOx. The delete uses billet block-off plates and coolant bypass fittings to remove the EGR cooler and valve from the circuit.
• DEF/SCR (Diesel Exhaust Fluid / Selective Catalytic Reduction) — Injects DEF into exhaust to further reduce NOx downstream. On 2020+ trucks, this system is also part of the full delete package.

The Diesel Dudes offers year-specific Ford 6.7 Powerstroke Full Delete Bundles ^{[72][73][74][75][76][77]} that combine all three components into one package. Bundles cover 2011-2012, 2013-2014, 2015-2016, 2017-2019, 2020-2022, and 2023-2026 model years, with pricing starting from $1,734.

Critical installation sequence: The delete tuner must be installed first — before any hard parts are removed. Without the tune in place, the ECM will immediately flag fault codes when EGR flow drops to zero. Once the tune is flashed, the DPF delete pipe goes in next, followed by the EGR kit last. Do not drive the truck without the DPF deleted after the tune is installed.

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

This is where most buyers make mistakes — assuming any 6.7 Powerstroke EGR delete kit will fit any year Super Duty. That's not how it works. Ford revised the EGR packaging, sensor locations, and cooler routing across every major generation. Here's the fitment breakdown for The Diesel Dudes EGR delete kits ^[6][47][48]:

Year Range	Engine	Compatible EGR Delete Kit	Full Delete Bundle
2011–2014	6.7L Powerstroke	EGR Delete Kit 2011-2014	2011-2012 Bundle / 2013-2014 Bundle
2015–2016	6.7L Powerstroke	EGR Delete Kit 2015-2016	2015-2016 Bundle
2017–2019	6.7L Powerstroke	EGR Delete Kit 2017-2019	2017-2019 Bundle
2020–2025	6.7L Powerstroke	EGR Delete Kit 2020-2025	2020-2022 Bundle / 2023-2026 Bundle
2008–2010	6.4L Powerstroke	6.4L EGR Delete Kit	6.4L Full Delete Bundle
2003–2007	6.0L Powerstroke	6.0L EGR Delete Kit	6.0L Full Delete Bundle

The 2011-2025 6.7 Powerstroke EGR delete kit from The Diesel Dudes uses a pass-through design with billet block-off plates machined to OEM flange specs ^[6]. Always confirm your exact model year before ordering — a 2017 kit will not seat correctly on a 2015 truck.

The EGR system — Exhaust Gas Recirculation — routes a portion of exhaust gas back into the intake manifold to reduce combustion temperatures and cut NOx emissions. That's the theory. The reality on the 6.7 Powerstroke is that hot, soot-laden exhaust running through a cooler and back into a clean intake creates a predictable set of failure points over time.

Here's what our technicians see most often from customer trucks:

• EGR cooler leaks — The cooler uses engine coolant to drop exhaust temps before the gas re-enters the intake. When the cooler cracks or the end tanks fail, coolant enters the intake stream. This is the most serious failure mode and can lead to hydrolock if caught late.
• Carbon buildup on intake valves and manifold — Soot from recirculated exhaust deposits on intake surfaces over time. Severe buildup restricts airflow and raises EGT (exhaust gas temperature) under load.
• Stuck or seized EGR valve — Carbon deposits cause the valve to stick open or closed. A stuck-open valve raises intake temps and throws a DTC; a stuck-closed valve typically sets a P0400-series code and can trigger limp mode.
• Elevated EGT under load — With the EGR valve open at high load conditions, intake charge temperature rises, which can push EGTs higher than ideal for sustained towing.

According to The Diesel Dudes Technical Team, the EGR cooler is the leading cause of coolant contamination on the 6.7 Powerstroke platform. Our shop data shows that trucks used for heavy towing or frequent idle cycles see EGR-related DTC codes earlier than trucks used primarily for highway driving.

The EPA's enforcement record confirms that EGR system tampering is common enough that regulators actively pursue aftermarket sellers — the WX Trading Corp. consent decree ^[3] and the Rudy's Performance Parts consent decree ^[1] both centered on the sale of emissions defeat devices, underscoring the legal stakes involved.

What's Included in the 6.7 Powerstroke EGR Delete Kit

• High-Pressure EGR Block-Off Plate — Seals the HP-EGR cooler inlet flange at the exhaust manifold side. Machined to OEM flange dimensions.
• Low-Pressure EGR Block-Off Plate — Blocks the LP-EGR circuit that feeds into the charge air cooler inlet on second-generation 6.7 Powerstroke trucks.
• Coolant Bypass Fittings — Reroutes coolant flow so the cooling circuit remains pressurized and functional after the EGR cooler is removed. Critical — do not skip this step.
• Intake Block-Off Plate — Covers the EGR valve port on the intake manifold.
• New Gaskets and Hardware — OEM-spec gaskets and grade-8 fasteners for all flange connections.

The Diesel Dudes 2011-2025 Ford 6.7L Powerstroke EGR Delete Kit uses a pass-through design ^[6] that simplifies coolant rerouting compared to older block-off-only designs. This matters because incomplete coolant bypass is the number one cause of post-install overheating on EGR delete jobs we've seen from customer support calls.

What the kit does not include: a delete tuner. Without a recalibrated tune, the ECM will immediately detect zero EGR flow via differential pressure sensors and set fault codes — potentially triggering limp mode or a 5 mph derate on newer trucks. The Diesel Dudes carries the EZ LYNK Auto Agent 3 for Ford Powerstroke 2008-2022 ^[61] as the primary tuning solution, and the BullyDog BDX for Ford Powerstroke 2011-2019 ^[24] as a standalone tuner option.

If you're running a 2023-2026 6.7 Powerstroke, tuning requirements are more involved due to updated ECM architecture — EZ LYNK software for Ford 2023-2025 6.7L ^[70] is the current solution for that platform. Call us before ordering if you're on a 2023+.

Every Powerstroke generation has its own EGR architecture. Here's what separates the three most common platforms:

6.0L Powerstroke (2003–2007)

The 6.0L is the platform that put EGR failure on the map for diesel truck owners. The OEM EGR cooler on the 6.0L is notoriously prone to cracking, and when it fails, coolant enters the intake. Worse, a clogged oil cooler — caused by the same low-flow cooling circuit — restricts coolant to the EGR cooler and accelerates its failure. The EGR Delete Kit for Ford 6.0L Powerstroke 2003-2007 ^[46] addresses the EGR valve and cooler. A full delete bundle ^[79] adds the DPF pipe and tuner. The 6.0L is also commonly paired with an oil cooler upgrade when doing EGR work — don't skip that step on high-mileage trucks.

6.4L Powerstroke (2008–2010)

Ford redesigned the EGR system for the 6.4L, adding a second EGR cooler and routing it through a more complex circuit. The 6.4L EGR Delete Kit with High-Flow Intake Elbow ^[5] addresses both coolers and replaces the restrictive factory intake elbow with a high-flow unit that improves air velocity into the intake manifold. The 6.4L Full Delete Bundle ^[71] bundles this with the DPF pipe and tuner. According to The Diesel Dudes Technical Team, the 6.4L is the Powerstroke generation most likely to see DPF regen-related fuel dilution issues on trucks used for short-trip driving — a regen cycle on a cold engine dumps raw fuel into the oil, and the OEM system doesn't always complete the regen before the truck is shut off.

6.7L Powerstroke (2011–Present)

Ford's in-house designed 6.7L runs both HP-EGR and LP-EGR circuits, both of which must be addressed for a complete delete ^[6][47][48]. The 2011-2016 collection ^[114] and 2017-2019 collection ^[115] each have generation-specific kits. For 2020+ trucks, added DEF/SCR complexity means the full delete is a more involved job.

Let's be straight about what the law says — no gray area here.

The Clean Air Act, specifically 42 U.S.C. § 7522(a)(3), prohibits any person from removing, disabling, or bypassing any emission control device on a motor vehicle used on public roads. This applies to both the person doing the work and the vehicle owner. Violations carry civil penalties up to $5,000 per vehicle for individuals.

EPA enforcement isn't theoretical. The consent decree entered against Rudy's Performance Parts, Inc. ^[1] in November 2024 — covering defeat device sales — demonstrates that federal regulators actively pursue aftermarket emissions defeat product cases. A separate action against WX Trading Corp. ^[3] by EPA Region IX further illustrates that both domestic sellers and importers face enforcement risk. These cases resulted in significant financial penalties and injunctive relief requiring sellers to stop offering defeat devices for on-road vehicles.

Regulations under 40 CFR Part 86 govern emissions from highway vehicles and establish the test procedures and control requirements that make EGR, DPF, and SCR systems federally mandated equipment on modern diesel trucks.

State-level enforcement adds another layer. California and several other states have independent emissions inspection programs and can impose additional penalties. Many states that have adopted California emissions standards treat visible defeat-device modifications as automatic inspection failures.

The bottom line: all delete hardware sold by The Diesel Dudes is marketed and sold for off-road, closed-course, and competition use only. Verify your local and state laws before purchasing or installing any emissions-related modification on a vehicle operated on public roads.

Legal Notice: Removing or tampering with emissions equipment may violate the federal Clean Air Act and state emissions regulations. Penalties can include fines up to $5,000 for individuals. Check your local and state laws before modifying emissions equipment on any vehicle driven on public roads.

Here's the thing — the hardware alone does nothing without the tune. The 6.7 Powerstroke ECM (Engine Control Module) runs closed-loop control strategies for both the EGR and DPF systems. It monitors EGR differential pressure, exhaust temp, DPF soot load, and regeneration cycle completion. When any of those sensors stop seeing expected values, the ECM throws a DTC and may derate engine output.

The correct installation sequence every time:

1. Install the delete tuner first — flash the ECM/PCM with delete calibration before touching any hardware. Ensure the battery is fully charged and a battery charger is connected during the flash.
2. Unplug the air intake throttle valve before tuner installation — this is specific to the 6.7 Powerstroke and prevents a fault during the flash process.
3. Install the DPF/CAT delete pipe — the 4" or 5" straight-pipe replaces the DPF and DOC assembly.
4. Install the EGR delete kit last — block-off plates, coolant bypass fittings, and valve removal.

For 2011-2019 6.7 Powerstroke trucks, the EZ LYNK Auto Agent 3 ^[61] and the BullyDog BDX ^[24] are the two most popular tuner platforms we carry. The EZ LYNK includes lifetime support pack tuning, which means tune revisions are covered. The BDX is a handheld unit that's simpler for owners who want a straightforward interface.

For the 2023-2025 6.7L, EZ LYNK software credits ^[70] are required due to the updated ECM architecture on third-generation trucks. The Shibby Engineering Tuner Harness Plug Kit for Ford Powerstroke ^[112] is recommended alongside any tuner to ensure clean connector integrity during the flash — our technicians have seen failed flashes traced directly to corroded OEM connector pins on higher-mileage trucks.

Never drive the truck on public roads with only the tune installed and the DPF still in place — the recalibrated fueling strategy assumes the DPF restriction is removed.

Before you click "add to cart" on any Powerstroke delete kit, run through this checklist. Our customer support team handles mismatched-kit calls weekly, and they're always avoidable.

1. Confirm exact model year and engine code. A 2015 and a 2017 6.7 Powerstroke use different EGR routing. Never assume year ranges overlap.
2. Verify the kit covers both EGR circuits. The 6.7 Powerstroke runs HP-EGR and LP-EGR. A kit that only blocks the HP circuit will still throw LP-EGR fault codes. Our 2011-2025 pass-through design EGR kit ^[6] addresses both.
3. Evaluate coolant bypass design. Look for kits that include dedicated coolant reroute fittings — not just block-off plates. Coolant still needs to flow through the circuit after the cooler is removed, or you'll overheat the block in that region.
4. Material and hardware quality. Billet aluminum or steel block-off plates machined to OEM flange spec. Avoid stamped or cast plates — they warp under heat cycles.
5. Bundle vs. individual components. Full delete bundles ^{[72][73][74][75][76][77]} consolidate tuner, DPF pipe, and EGR kit into one order with verified fitment. Individual parts sourced separately increase risk of incompatibility.
6. Tuner compatibility. Confirm the tuner supports your exact ECM calibration ID. This is especially relevant for 2020+ trucks that received mid-cycle ECM updates.
7. Warranty and support. The Diesel Dudes offers a 1-Year Extended Warranty on EGR kits ^[4] — coverage matters when you're dealing with coolant-side components.

If you're on a cab-and-chassis Super Duty, there's also a dedicated Cab & Chassis Ford Powerstroke Full Delete Bundle ^[25] with the extended exhaust routing those configurations require. Don't order a standard bundle for a CC truck.