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Why Gen 3 Owners Research Emissions Delete Kits

Ford introduced the third generation of the 6.7L Powerstroke for 2020 with more power and towing capacity. It also brought tighter fault thresholds, so the PCM reacts faster to small changes in emissions sensor readings.

Owners commonly report frequent DPF regeneration under heavy towing, DEF consumption that climbs with load, and EGR-related check engine lights. Active regeneration injects extra fuel to heat the exhaust. Some of that fuel can reach the crankcase and thin the oil. Ash buildup in the DPF also raises exhaust backpressure over time.

The EGR cooler is another known weak point. Heat cycling can fatigue the cooler on higher-mileage trucks, and a cracked cooler can send coolant into the intake. White smoke, rough idle and unexplained coolant loss are the warning signs.

Gen 2 vs Gen 3: What Changed

System 2011-2019 (Gen 2) 2020-2024 (Gen 3) Kit and tune impact
Engine computer Earlier Bosch architecture Bosch MD1/MDG1 with a security gateway Tuning access is harder and varies by year
NOx sensors Wider tolerance Tight calibration, revised positions Needs Gen 3 NOx emulators or resistor setup
EGR hardware Gen 2 cooler and valve Updated cooler and valve configuration Needs Gen 3 block-off plates and gaskets
DPF pressure monitoring Standard limits Tighter differential limits Tune must address the monitoring logic
Transmission 6R140 10R140 10-speed Torque changes call for transmission tuning

What a Complete Gen 3 Kit Includes

  • DPF delete pipe: Matches the factory downpipe outlet and hanger positions. Most Gen 3 pipes use 4 inch or 5 inch mandrel-bent stainless steel. A 5 inch downpipe-back system suits owners who tow heavy.
  • EGR delete hardware: CNC-machined billet aluminum block-off plates, a Gen 3 gasket set, and a coolant flow-through plate to keep coolant routing correct once the cooler is out.
  • NOx sensor emulator or resistor setup: Calibrated for 2020+ sensor positions. Without it, the PCM sees an implausible reading, sets codes such as P20EE and can force a derate.
  • Compatible tuner: Handles DPF regen, EGR, DEF and sensor logic along with fueling. Confirm it lists your model year.
  • Clamps, gaskets and hardware: Review the product page list before you buy so nothing is missing on install day.

Tuning by Model Year

The tune is the hardest part of a Gen 3 build. The security gateway in these ECUs is built to resist outside changes.

Model years What to expect
2020-2022 Many trucks needed an ECU unlock, either on the bench or by mail-in, before a tuner could write to the computer. Ask the seller which method applies to your truck.
2023-2024 Newer ECU revisions with tighter protection. Tool support for direct OBD access has changed quickly. Confirm current support for your exact ECU before buying hardware.

Important: Do not buy pipes and plates for a 2023 or 2024 truck until you have confirmed a tune is available for it. Hardware without a working tune leaves the truck in derate.

Our 6.7L Powerstroke tuner guide by year compares the options by model year.

Transmission Tuning Matters on the 10R140

The 10-speed 10R140 relies on the engine reducing torque during shifts. A performance tune can reduce or remove those pauses. At higher torque, factory line pressure may not clamp the clutch packs firmly, which can cause slipping, a harsh 3rd to 4th shift and early wear.

Transmission tuning is strongly recommended alongside any engine tune that raises power. Owners who tow heavy often add a transmission rebuild with upgraded clutches.

A Note on the CP4 Fuel Pump

The 6.7L uses a Bosch CP4 high-pressure pump that depends on diesel fuel for lubrication. Low-lubricity or contaminated fuel can damage it. A failed pump can send metal debris through the rails and injectors, and the repair is a major expense. Many off-road builders pair a tune with a pump protection plan or a pump conversion. Water separation and clean fuel matter on any Gen 3 truck.

Install Difficulty: Moderate to Hard

If you have installed a 2011-2019 kit, a Gen 3 install will feel familiar with extra steps.

  • The EGR cooler area sits tighter against the firewall on some cab-and-chassis trucks, which limits wrench clearance.
  • The exhaust sensor wiring differs, so the NOx and EGT signals must be routed and emulated correctly.
  • The downpipe has tight clearance near the crossmember and firewall. Exact-fit pipes matter.
  • Where the truck allows it, load the tune before removing hardware so the PCM does not derate mid-teardown. Follow your tuner provider's order of steps, since unlock procedures vary. A second flash may be needed afterward for idle and fueling relearn.

Use jack stands or a lift, wait for the exhaust to cool, wear eye protection, and choose professional installation if you are unsure.

Expected Performance Gains

These are tuner-reported values and vary by truck, tune, fuel, altitude, installation and towing load. EngineGo does not guarantee specific results.

Metric Tuner-reported range What owners notice
Horsepower +40 to +80 HP Sharper throttle response
Torque +80 to +120 lb-ft Stronger mid-range pull when loaded
Fuel economy +1.5 to +3.0 MPG No regen fuel use and less pumping loss
Exhaust temperatures Lower under load Cooler towing temperatures from freer exhaust flow
Reliability Varies Fewer regen and sensor faults reported when installed and tuned correctly

Before You Buy Checklist

  • Confirm model year, 4x2 or 4x4, cab and bed, and pickup or cab-and-chassis
  • Confirm the tuner supports your exact ECU and unlock method
  • Plan for transmission tuning
  • Review what is in the box and what else you need
  • Confirm off-road or race use is permitted where the truck will be used
  • Send your truck details to support if anything is unclear

Frequently Asked Questions

Does a 2020-2024 truck need a different kit than a 2011-2019 truck?

Yes. Gen 3 trucks have different NOx sensor positions, updated EGR hardware and a different ECU. A 2011-2019 kit will not fit correctly or tune correctly.

Will I still get a check engine light after installation?

A correct install with matching NOx emulators and a compatible tune is meant to prevent fault codes. EngineGo cannot promise a code-free truck, since installation errors, sensors and tune versions all play a part.

Can I still tow after installing a kit?

Owners report better towing temperatures with freer exhaust flow. Pair the engine tune with a transmission tune and confirm legal use before you install.

Is a tune required?

Yes. Without a supporting tune, a truck missing its emissions hardware will set codes and derate.

Is a DPF-only kit enough?

A DPF-only setup addresses the filter. A full kit also covers EGR and DEF/SCR logic. For Gen 3 trucks, many builders choose a full kit so the pieces match.

Shop Gen 3 Parts for Your Exact Truck

Start with the 2020-2024 Ford 6.7L Powerstroke collection to see parts filtered for your model years. Full setups are grouped under 6.7 Powerstroke kits, so compare the 6.7 Powerstroke delete kits against your tuner plan.

Most orders are processed the same or next business day, excluding Sundays. Free shipping applies within the continental United States. Authorized returns are accepted within 45 calendar days of receipt for unused, uninstalled, unmodified parts. Tuner products may have stricter return limits.