How We Evaluate Delete Kits
A good diesel delete kit solves the problem on your exact truck the first time. We score every kit on four points.
- Hardware quality. Check pipe diameter, material, flange thickness, and whether gaskets, bolts, and band clamps are included. Thin stamped parts wear out faster than properly formed ones.
- Tuner quality. A tune matched to your year and engine saves you from codes and derate. A generic file written for “any diesel” is a guess.
- Fitment accuracy. The listing should name the year range, engine, cab, bed, and exhaust layout.
- Support. You should be able to ask a fitment question before you buy and a troubleshooting question after the install.
Best Kit for Ford 6.7L Powerstroke
EngineGo 6.7L All-in-One Delete Kit
Many 6.7L owners deal with repeat DPF regens, sensor faults, or a repair quote that makes a full setup look cheaper. EngineGo’s 6.7L Power Stroke delete kits bundle exhaust, EGR hardware, and a tuner so the parts are matched from the start.
Fitment
- 2011-2014 and 2017-2019 F-250 to F-450 Super Duty: one kit family
- 2015-2016: separate kits with a coolant bypass, because Ford changed how the EGR cooler ties into the cooling system. Blocking that circuit with the wrong hardware can cause hot spots and head gasket trouble
- Choose a 4-inch or 5-inch downpipe-back, with or without a muffler
What’s included: exhaust pipe, EGR hardware, tuner, and mounting parts. Check the product page for the exact list.
Before you buy: Confirm your cab, bed, and exhaust layout. Important: 2020-2024 trucks are a different platform and need their own kit. We do not quote horsepower or MPG numbers because gains vary by truck and tune.
Best Kit for Ford 6.4L Powerstroke
EngineGo 6.4L EGR + DPF Kit
The 2008-2010 6.4L runs hot and builds soot, and its regeneration cycle injects extra fuel, which can dilute the engine oil. That is why owners usually address the EGR and DPF together. EngineGo offers a 4-inch DPF delete pipe or a 5-inch downpipe-back, each paired with an EGR kit in red, blue, black, or silver.
The 6.4L uses compound twin turbos, so exhaust backpressure and tuning both matter. Pick a tuner version, or confirm your own tuner supports this engine. Change the oil after any long period of heavy regens.
Before you buy: These kits are for 2008-2010 F-250 and F-350 pickups.
Best Kit for Ford 6.0L Powerstroke
EngineGo 6.0L EGR Delete + Coolant Kit
The 2003-2007 6.0L needs a different mindset. The EGR cooler rarely fails alone. In most cases the engine oil cooler clogs first, restricts coolant flow, and starves the EGR cooler, which then overheats and ruptures. Replacing or deleting only the EGR cooler leaves the real problem in place.
Before you order, check your oil and coolant temperatures on a scan tool during a steady highway cruise. If oil temperature runs more than about 15 degrees above coolant temperature, the oil cooler is likely restricted and should be replaced. Then clean the system with a full coolant flush.
EngineGo’s 6.0L option pairs an EGR cooler delete with an up-pipe, with muffler delete and tuner versions available. Stretched head bolts are common after overheating, so many builders add head studs. An EGR delete does not fix a blown head gasket.
Best Kit for 6.7L Cummins
EngineGo 6.7L Cummins All-in-One Kit
The 6.7L Cummins is where year breaks matter most. EngineGo’s all-in-one kits for 2013-2017 Ram 2500 and 3500 trucks combine a DPF delete pipe, EGR delete, and a tuner. Choose a 4-inch or 5-inch turbo-back, with or without a muffler.
Fitment by year
- 2007-2009: separate kits
- 2010-2012: kit adds a CCV reroute
- 2013-2017: the all-in-one kits above
- 2018 and newer: check the year-break guidance first, because tuning needs change
About the CCV: The factory crankcase vent sends oil mist back into the turbo inlet, where it coats the intercooler and mixes with soot in the intake. A reroute solves that, but the install matters. Use the right hose size, keep a steady downward slope so oil cannot pool, and seal the old turbo inlet port. A bad reroute can pressurize the crankcase and push out seals.
Important: Cab & Chassis trucks (3500 to 5500) need their own EGR kits.
Best Kit for 5.9L Cummins
Short answer: most 2003-2007 trucks do not need one.
This is the section where many listings get it wrong. The 2003-2007 5.9L pickup has no external EGR valve, no EGR cooler, no DPF, and no DEF system. Dodge did not add EGR and a particulate filter until the 6.7L arrived in mid-2007. The older engine handled emissions with a cam profile that traps some exhaust gas in the cylinder, so there is nothing to unbolt.
If a seller offers an “EGR delete kit” for a standard 5.9L pickup, ask what it replaces. Owners of these trucks usually get more from a clean fuel system, a good intake, and an exhaust upgrade.
Before you buy: Check your build date. A truck built after mid-2007 is a 6.7L and needs the 2007-2009 6.7L kit instead.
Best Kit for LML Duramax
EngineGo LML Complete Delete Kit
The 2011-2016 LML has a year break that trips up buyers, and exhaust fitment differs on each side of it. EngineGo covers both.
- 2011-2015: DPF delete pipe plus EGR delete kit, in black or silver
- 2015.5-2016: all-in-one DPF and EGR kit, or a 4-inch DPF delete race pipe
- Exhaust: a 5-inch downpipe-back is available for 2011-2015
The LML also has a DEF system. Without a matching tune, the truck can set codes and drop into derate. Pair any kit with a tune for your exact year, and check your build date against the Vehicle Fit Guide.
Best Kit for L5P Duramax
EngineGo L5P Kit + Tuner
The 2017 and newer L5P is the most tuner-dependent platform here. EngineGo’s L5P kits come as an EGR, DPF, and DOC setup with a 3.5-inch downpipe and 4-inch DPF delete pipe, or a 5-inch downpipe-back without a muffler.
Pair the kit with an EZ Lynk AMDP tuning package. Removing the factory sensors leaves open circuits on the truck’s data network, and a CAN bus connector closes the loop so the network keeps communicating. The 2017-2019 and 2020-2023 trucks use different connectors, so match yours to your year. Also confirm whether your ECM needs an unlock before tuning.
All-in-One vs Separate Parts: Which to Buy?
| |
All-in-one kit |
Separate parts |
| Best for |
Most buyers, first-time installs |
Custom builds, staged upgrades |
| Fitment risk |
Lower, parts are matched |
Higher, you match each part |
| Tuner |
Often included |
Buy separately |
| Hardware |
Bundled |
Check each listing |
All-in-one is the right call for most buyers. All-in-one delete kits bundle the exhaust, EGR hardware, and tuner, so you are not piecing a setup together from multiple sellers. Separate parts make sense when you already own a tuner or plan to upgrade in stages.
Red Flags: What to Avoid When Buying a Delete Kit
- Generic or off-brand block-off plates. Poor fit leads to leaks and coolant problems.
- “Universal” kits or tunes. Every platform differs by year, engine, and configuration.
- Kits for engines that do not need them. The 5.9L pickup is the example.
- No parts list or vague fitment. Expect missing clamps or the wrong year.
- “Street legal” or “passes inspection” claims. Walk away. No honest seller can promise that.
- No support or unclear returns. EngineGo ships free within the continental U.S. and accepts authorized returns within 45 days when the part is unused, uninstalled, and in original condition. Tuner returns may have stricter terms.
Legal Reality: What Federal Law Says
The Clean Air Act bars anyone from making, selling, or installing a device meant to bypass, defeat, or disable an emissions component on a vehicle. That covers hardware such as DPF delete pipes and EGR block-off kits, and it covers tuning software that switches off emissions functions.
An “off-road only” or “race use” label does not change this for a pickup that left the factory certified for highway use. The EPA treats converting a certified truck to a competition vehicle as tampering.
Enforcement shifted in 2026, but the law did not. The Department of Justice announced on January 21, 2026 that it would stop pursuing criminal charges for diesel emissions deletes and focus on civil enforcement. DOJ and EPA said they will still pursue civil cases when appropriate. EPA lists civil penalties of up to $4,527 per tampering event or defeat-device sale, and up to $45,268 per noncompliant vehicle.
A deleted truck can also fail a state inspection, may affect warranty coverage, and can be harder to resell. Rules vary by state. Confirm what applies to your truck, your state, and your use before you order, and talk to a qualified professional if you are unsure.
FAQs
Do I need a tuner with a delete kit?
Most setups need one to manage the engine and clear codes. Some kits include it, so compare that when you shop.
Will a delete kit fit my exact truck?
Only if your year, engine, cab, bed, and exhaust layout match the listing. Send your truck details to support if you are unsure.
Are delete kits legal?
Under federal law, removing emissions controls on a road-certified truck is prohibited, and an off-road label does not change that. See the Legal Reality section above.
Does my 5.9L Cummins need a delete kit?
A standard 2003-2007 5.9L pickup has no external EGR or DPF to remove.
How hard is installation?
It ranges from moderate to hard depending on the platform. Use proper lifts, jack stands, and protective gear, and let the exhaust cool fully. Professional installation is smart if you are not comfortable.
How fast will it ship?
Most orders are processed the same or next business day, excluding Sundays, and most packages arrive in 3-5 business days after leaving the warehouse.
Find the Right Kit for Your Truck
Pick your platform, check your year and configuration, and send your truck details if anything is unclear. Check fitment before ordering, and review the legal rules for your truck before you buy.
