Quick Answer: How Much Does It Cost to Delete a 2019 L5P Duramax?
Deleting a 2019 L5P Duramax usually costs $1,800 to $4,500+, depending on the kit, tuner, ECM unlock, and whether you install it yourself or pay a shop. A basic DIY 2019 L5P delete setup may start around $1,800–$2,800. A complete all-in-one kit with tuning usually lands around $2,500–$3,700+. If you pay a shop, expect the full job to run closer to $3,000–$5,000+, depending on labor, tuning, and extra parts.
Here is the old-truck-owner version: the delete pipe is not what gets most guys. The real money is in the tuner, unlock, missing hardware, labor, and fixing mistakes when cheap parts do not fit right.
Compliance Note: DPF, EGR, SCR, and DEF delete parts are intended for off-road, race, competition, farm, or export-use vehicles only. They are not legal for public-road use in areas where emissions equipment must stay installed and working. Always check federal, state, and local laws before modifying your truck.
2019 L5P Delete Cost at a Glance
| Setup Type | Estimated Cost | Best For | Old-School Advice |
|---|---|---|---|
| Hardware-only DIY setup | $1,800–$2,800 | Owners who already have tuning handled | Do not buy hardware first if you do not know your tuning plan. |
| All-in-one delete kit | $2,500–$3,700+ | First-time buyers who want fewer missing parts | Usually the cleaner path if you want hardware and tuning lined up. |
| Shop-installed full delete | $3,000–$5,000+ | Owners who do not want a driveway fight | Labor costs money, but fixing a bad install costs more. |
What Does It Mean to Delete a 2019 L5P Duramax?
Deleting a 2019 L5P Duramax means removing or bypassing factory emissions components on an off-road-use truck. These parts may include the DPF, EGR system, SCR system, DEF system, and related sensors or modules.
On a 2019 L5P, this is not just a pipe swap. The truck’s ECM is watching the emissions system. If the hardware is removed without a clear tuning plan, the truck can throw codes, derate power, or go into limp mode. Before choosing a device or tune file, compare the main L5P tuner options.
Common Parts in a 2019 L5P Delete Kit
- DPF delete pipe: Replaces the factory diesel particulate filter section on off-road-use setups.
- EGR delete kit: Blocks off or removes the EGR valve and cooler components.
- DEF/SCR-related components: Used when the SCR and DEF system are removed or bypassed for off-road use.
- Tuning device: Needed to recalibrate the ECM for the new setup.
- L5P factory ECM unlock instructions: Often needed on 2017–2019 L5P trucks before flashing.
- Clamps, plates, hoses, and hardware: Small parts, but missing one can stop the whole job.
Full Cost Breakdown for Deleting a 2019 L5P
The total cost depends on how complete your kit is. Cheap kits often look good until you realize the tuner, ECM unlock, plugs, clamps, or support are not included.
EGR Delete Kit Cost: $200–$500
A basic L5P EGR delete kit usually costs around $200 to $500. The price depends on material quality, coolant routing parts, block-off plates, gaskets, and brand support.
This is one area where cheap parts can be painful. Poor fitment can cause coolant leaks, exhaust leaks, or a full afternoon of cussing in the garage.
DPF and SCR Delete Pipe Cost: $300–$800
A DPF or SCR delete pipe usually costs around $300 to $800. The price depends on pipe diameter, material, weld quality, and whether you choose a 4-inch or 5-inch setup.
If you live where roads get salted, stainless steel is worth considering. Aluminized parts may save money upfront, but rust does not care how good the deal looked online.
Tuner, Tune Files, and ECM Unlock Cost: $900–$1,800+
This is the part many first-time buyers underestimate. A 2019 L5P needs proper tuning, and many setups also require ECM unlock support before the truck can be flashed.
Expect around $900 to $1,800+ for the tuner, files, and unlock path, depending on the device and tuning support.
Garage-floor truth: The tune matters more than the pipe. A nice exhaust with a bad tune is still a bad build.
Labor Cost: $500–$1,200+
If you pay a shop, labor usually lands around $500 to $1,200+. A full job can take several hours depending on rust, lift access, EGR work, exhaust removal, and how complete the kit is.
A clean truck from a dry state is one thing. A truck with rusty clamps and seized hardware is another story.
Total Estimated Cost Summary
| Item | Estimated Price Range | Notes |
|---|---|---|
| EGR delete kit | $200–$500 | Check plate quality, hoses, gaskets, and coolant routing. |
| DPF/SCR delete pipe | $300–$800 | Material and pipe size affect price. |
| Tuner, files, and ECM unlock | $900–$1,800+ | Required. Do not skip the tuning plan. |
| Shop labor | $500–$1,200+ | Depends on shop rate, rust, and install complexity. |
| Total estimate | $1,800–$4,500+ | Can go higher with premium tuning or shop labor. |
Hidden Costs Most 2019 L5P Owners Forget
This is where the real bill can creep up. The kit price is only part of the story.
- ECM unlock: A 2019 L5P may need unlock service before tuning.
- CAN bus plugs or connector protection: Helps protect open factory connectors after removal.
- Extra clamps and gaskets: Cheap parts can leak or fail during install.
- Coolant: EGR work may require draining or topping off coolant.
- Broken bolts: Rusty trucks can turn a normal job into a long day.
- Downtime: If the truck works for a living, a two-day delay costs money.
- Rework: Mismatched parts or bad tuning can mean paying twice.
That is why a complete kit often makes more sense for a first-time buyer. You are not just buying parts. You are buying fewer surprises. If you are still unsure what has to be included, start with what you need to delete an L5P Duramax before pricing the job.
Is a Full L5P All-in-One Kit Worth the Money?
For most first-time 2019 L5P owners, yes. A full kit usually costs more than a box of separate parts, but it can save time and reduce mistakes.
An all-in-one kit makes sense if you want:
- Matched hardware
- A clear tuning path
- Fewer missing parts
- Better install support
- One place to call if something does not fit
If you already have a trusted tuner and know exactly what hardware you need, a piecemeal setup can save money. If you are guessing, buy the complete setup.
This kit is designed for off-road, race, farm, or export-use L5P Duramax trucks. It is built for owners who want the main hardware, tuning path, and support lined up before the truck is apart.
- Fits 2017-2023 L5P 6.6L Duramax applications
- Includes key DPF, EGR, and DEF delete components
- Helps reduce missing-part and mismatch problems
- Better for owners who want a complete buying path
Legal and Warranty Considerations
This part is not fun, but it matters. If your 2019 L5P is driven on public roads, deleting emissions equipment can create legal, inspection, registration, warranty, and resale problems.
Is It Legal to Delete a 2019 L5P Duramax?
For public-road use, no. Removing or disabling factory emissions equipment is not legal in many areas. DPF, EGR, SCR, and DEF delete parts are intended for off-road, race, farm, competition, or export-use vehicles only.
If the truck needs to pass inspection, compare the risks in this L5P delete vs emissions-intact comparison. Do not build a public-road truck like a closed-course truck.
Will a Delete Void the Warranty?
Yes, it can. Once emissions parts are removed and custom tuning is flashed, warranty coverage can be denied for powertrain, emissions, engine, or transmission-related claims.
Do not count on “stealth” claims or reset tricks. Dealers and manufacturers are not new to modified trucks.
What About Resale?
A deleted truck can be harder to sell. Some private buyers may want it, but many dealers will not touch it. If you plan to trade the truck later, keep that in mind before modifying it.
Performance and MPG: What Can You Expect?
A properly built off-road-use 2019 L5P can feel stronger after a delete and tune. Throttle response can improve, exhaust restriction can drop, and regen-related fuel use goes away.
But do not buy based on wild internet numbers. Results depend on the tune, tire size, gearing, towing weight, altitude, fuel quality, and how heavy your right foot is.
Horsepower and Torque
Some off-road-use builds can see strong gains with the right tune and supporting parts, but the delete hardware alone is not the full power source. For realistic numbers, review these deleted and tuned L5P horsepower expectations.
For a tow or work setup, do not chase the hottest file. A clean, safe tune is worth more than a dyno number you cannot use every day.
Fuel Economy
Some owners may see better MPG after removing regen-related fuel use and reducing restriction. But gains are not guaranteed. If regen is one of your main problems, read this guide to L5P regen and DPF issues.
Big tires, lift kits, hard driving, bad tuning, and heavy towing can erase fuel savings fast. Anyone promising the same MPG gain for every truck is not telling the whole story.
Maintenance Costs
A delete can remove some emissions-related failure points on an off-road-use truck, including DPF restriction, DEF faults, EGR cooler issues, and regen problems.
But it will not fix everything. It will not repair bad injectors, a weak turbo, fuel system issues, coolant leaks, boost leaks, or transmission wear.
How to Choose the Right Delete Kit for a 2019 L5P
Before buying, check the boring stuff. The boring stuff is what saves money.
- Fitment: Make sure the kit fits 2019 L5P trucks, not just “Duramax” in general.
- ECM unlock: Confirm whether unlock service or tools are included.
- Tuning: Ask what device, files, and support are included.
- Materials: Look for quality stainless exhaust parts and solid block-off hardware.
- Instructions: A clean guide matters when the truck is apart.
- Support: Make sure someone can help if a part does not fit or a tune step is unclear.
If you want a deeper comparison before choosing your setup, read this L5P setup comparison guide before you spend the money.
DIY vs Shop Install: Which One Should You Choose?
DIY Install
DIY can save labor money if you have tools, space, patience, and mechanical experience. Plan on several hours, especially if the truck has rust or tight exhaust hardware.
DIY makes sense if you are comfortable with:
- Exhaust removal
- Coolant routing
- Sensor handling
- Clamps and hangers
- OBD-II tuning steps
- Final leak checks
Shop Install
A shop install costs more, but it can save your weekend and reduce risk. This is the better move if the truck is your work truck and downtime costs you money.
Ask the shop if they have worked on L5P trucks before. A diesel shop that understands the platform is worth paying for.
Installation Overview for a 2019 L5P Delete
This is not a full install manual, but here is the general order of work so you understand where the labor cost comes from.
- Disconnect batteries and let the exhaust cool.
- Remove factory DPF, SCR, and related exhaust sections.
- Install the DPF delete pipe and align the exhaust properly. For the exhaust-side work, use this L5P DPF downpipe installation guide.
- Install L5P EGR delete installation steps and coolant reroute parts where required.
- Install optional CCV reroute parts if included in your build.
- Unlock and flash the ECM with the correct tune.
- Check for leaks, warning lights, exhaust contact, and loose hardware.
Is Deleting a 2019 L5P Worth It?
It depends on how the truck is used.
If your 2019 L5P is a public-road daily driver, tow rig, or work truck that needs inspection, a delete is usually not the right move. The legal, warranty, inspection, and resale risks are too big.
If your truck is for off-road, race, farm, competition, or export use only, a properly matched delete kit can make sense. It can reduce emissions-system headaches, lower restriction, and support stronger tuning. If you are still on the fence, this guide on whether you should delete your L5P gives a broader decision framework.
The key word is properly. Buy the right kit, match the tune, and do the install clean. That is how you avoid paying twice.
Summary
Deleting a 2019 L5P Duramax usually costs between $1,800 and $4,500+. The cheapest route is not always the smartest route. The right answer depends on your truck, your tuner, your legal use case, and whether you install it yourself or pay a shop.
For a street-driven truck, keep emissions compliance at the top of the list. For an off-road, race, farm, or export-use truck, a matched all-in-one kit can save time, reduce guesswork, and help avoid the usual driveway mistakes.
Old rule still applies: do not price the job by the pipe alone. Price the whole build — hardware, tune, unlock, labor, support, and the cost of doing it wrong.
FAQ
Q1: How much does it cost to delete a 2019 L5P?
A1: Most 2019 L5P delete setups cost around $1,800 to $4,500+. A DIY setup can be cheaper, while a full all-in-one kit with shop labor can cost more. The total depends on the kit, tuner, ECM unlock, and labor. For a first-time buyer, an all-in-one kit with matched hardware and tuning is usually the cleaner path to avoid missing parts and rework.
Q2: How much does a full DPF delete cost?
A2: A DPF delete pipe alone may cost around $300 to $800, but a full DPF delete setup also needs tuning. Once tuning and unlock support are included, the cost can be much higher. Always price the tuning path with the pipe — buying hardware without a clear flash plan is the most common expensive mistake.
Q3: How much does it cost to tune and delete a 2019 Duramax?
A3: A tune-and-delete setup for a 2019 L5P often costs around $2,500 to $4,500+, depending on the tuner, ECM unlock, hardware, and labor. The tuning device and files alone can run $900–$1,800+, making this the single largest line item in most builds.
Q4: Does a 2019 L5P need an ECM unlock?
A4: Many 2017–2019 L5P trucks require ECM unlock support before tuning. Confirm this before buying a kit, because unlock cost and process can change the total price. Skipping this step can leave you with hardware on the truck and no way to flash it.
Q5: Can I install a 2019 L5P delete kit myself?
A5: Experienced DIY owners can install a kit with the right tools, space, and guide. If you are not comfortable with exhaust work, coolant routing, wiring, and tuning steps, use a qualified diesel shop. A bad install can cause leaks, codes, or limp mode — and fixing it costs more than doing it right the first time.
Q6: How long does it take to delete a 2019 L5P?
A6: A full install can take several hours. Many DIY owners should plan for a full day. A professional shop may complete the job faster, depending on rust, lift access, and kit complexity. A rusty truck with seized hardware can easily double the time versus a clean truck from a dry state.
Q7: Is it legal to delete emissions on a 2019 L5P?
A7: Not for public-road use in many areas. DPF, EGR, SCR, and DEF delete parts are intended for off-road, race, competition, farm, or export-use vehicles only. Always check federal, state, and local laws before modifying your truck — the legal risk can far outweigh the performance gain for a street-driven truck.
Q8: Will deleting a 2019 L5P void the warranty?
A8: Yes, it can. Removing emissions equipment and flashing custom tuning can give the dealer or manufacturer grounds to deny powertrain, emissions, engine, or transmission-related warranty claims. Do not rely on “stealth” claims or reset tricks — dealerships and manufacturers are experienced with spotting modified trucks.
Q9: What comes in a complete 2019 L5P delete kit?
A9: A complete kit may include a DPF delete pipe, EGR delete parts, DEF/SCR-related components, tuner, tune files, unlock support, clamps, gaskets, plugs, and installation hardware. Always check the exact kit contents before buying — cheap kits often skip the tuner, unlock, or small hardware and leave you paying twice.
Q10: Will a deleted L5P get better fuel economy?
A10: It may, but it is not guaranteed. Some owners see better MPG because regen-related fuel use is removed, but tune quality, tire size, gearing, towing weight, and driving style all matter. Big tires, lift kits, hard driving, and bad tuning can erase fuel savings fast.
Q11: What is the biggest hidden cost in a 2019 L5P delete?
A11: The biggest hidden costs are usually tuning, ECM unlock, missing hardware, labor, and fixing problems caused by mismatched parts or poor installation. Plan for ECM unlock cost, extra clamps, gaskets, coolant, and possible broken bolt repairs before setting your budget.
Q12: Is a full all-in-one L5P delete kit better than buying separate parts?
A12: For most first-time buyers, yes. An all-in-one kit reduces the chance of missing parts, wrong tuning, or bad fitment. Experienced owners with a trusted tuner may save money with separate hardware. If you are guessing, buy the complete setup to avoid paying for the same job twice.
Lars
Diesel Performance Engineer | 15+ Years EXPERIENCE
“Empower Your Beast: Run Cooler, Pull Harder, Last Longer.”
