DPF/EGR/DEF Delete 2017-2023 L5P 6.6L GM/Chevy Duramax All-in-One Kit
Note: Does not fit Cab&Chassis.
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- Brand: SPETUNER
- SKU: #11307
- Availability: Many in stock
- Product Type: Delete Kit
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2017-2023 Duramax L5P Tune and Delete Kit | 6.6L GM/Chevy
Looking for a complete L5P delete solution for your 2017–2023Duramax? Our best-selling L5P full delete kit removes the restrictive emissions systems (DPF, EGR, DEF) and replaces them with premium parts — custom tuner. This is the most trusted L5P Duramax delete kit for owners who want more power, better MPG, and fewer maintenance issues.
Key Features
Deleting emissions components is about more than just power. Here’s what you can expect:
- Massive Performance Gains: Get improved horsepower, torque, turbo spool, and shift quality
- Fuel Economy Boost: Reduced backpressure and better combustion translate into MPG savings
- Lower Maintenance Costs: Say goodbye to clogged DPFs, failed sensors, and costly DEF refills
- Cooler Running Engine: Removing EGR and DPF reduces EGTs, helping your engine and turbo live longer
- Off-Road Ready: Designed for off-highway and competition use where emissions compliance is not required
What’s Included?
L5P EGR Delete Kit
Technical Function: Completely eliminates the Exhaust Gas Recirculation (EGR) system to prevent soot intake and carbon buildup.
Core Benefit: By ensuring cleaner intake air and cooler engine operating temperatures, it significantly improves throttle response and prevents long-term manifold restriction.
DPF & DEF Delete Components
Technical Function: Replaces the Diesel Particulate Filter (DPF) and bypasses the Diesel Exhaust Fluid (DEF) system.
Core Benefit: Enhances exhaust velocity and lowers Exhaust Gas Temperatures (EGTs). This modular upgrade reduces maintenance costs by eliminating common sensor failures and DEF-related downtime.
OBD2 Flash Tuning Interface & Unlock Tool
Technical Function: Provides direct ECM calibration via the OBD2 port without requiring a physical ECM swap.
Core Benefit: Includes preloaded performance tunes ranging from 0HP to +150HP. The integrated unlock tool simplifies the installation process by eliminating the need for crank relearn or core returns.
Selectable Power Levels (only for 2017–2023 SOTF):
| 1 | 2 | 3 | 4 | 5 |
| 0HP | 50HP | 75HP | 100HP | 150HP |
We strongly recommend monitoring EGTs when using Levels 4 & 5.
Custom Exhaust Configuration Options
Technical Function: Modular exhaust upgrades including 4" or 5" downpipe-back systems.
Core Benefit: Available with optional mufflers or dual-exit configurations, allowing for precise control over exhaust sound, backpressure reduction, and aesthetics.
L5P Performance Optimization Summary
| Component | Feature | Performance Gain |
|---|---|---|
| EGR Delete | Soot Elimination | Improved Engine Longevity |
| DPF/DEF Delete | Flow Optimization | Increased HP & Lower EGTs |
| Flash Tuner | Custom Tuning | 0HP to 150HP Power Levels |
Spetuner combines premium L5P performance parts with proven tuning technology to unlock your truck’s full potential. You can check our article on L5P Duramax Delete Guide 2017-2023.
Installation
OBDii Flash Delete Tuning Interface Installation
2017-2023 L5P 6.6L Duramax EGR Delete Kit Instruction
6.6 Duramax L5P 4" DPF Downpipe Installation Guide
2017-2019 Duramax 6.6L L5P 5” Downpipe Back Dual Install PDF
Why Choose Ours L5P Duramax Delete Kit?
The Spetuner L5P Duramax Delete Kit is a comprehensive, all-in-one performance solution engineered for the 2017-2023 6.6L Duramax. This kit integrates high-grade hardware with advanced digital tuning to unlock maximum engine efficiency and longevity.
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Complete Package: Includes EGR delete kit, DPF delete, DEF delete, and a flash tuning interface with unlock tool and pre-loaded tunes.
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Precision Tuning: Built specifically for 2017–2023 L5P Duramax engines, optimizing for fuel economy, throttle response, and towing power.
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Wide Vehicle Compatibility: Fully compatible with GMC Sierra and Chevrolet Silverado 2500/3500 HD platforms, ensuring easy installation and OEM-style fit.
Note: Reading and data logging with HP Tuners is free and does not require credits. Credits are only needed when licensing a vehicle to flash/write a tune.
Let customers speak for us
Great product easy to install
The reroute kit was high quality and easy to assemble it really cleaned up the space on my 2014 lml .
The price doesn’t Reflect on the product. Very high quality heavy duty parts . The only thing lacking is instructions that would have put this kit over the top . I did the full lml delete and pcv reroute . The kit doesn’t come with the up pipe you have to order that separate.
Better sound, more power. Love it!
Purchased SPE delete for a F450. Was a little more than I could do to install. Took to my mechanic who installed it. He couldn't stop raving about the quality of the kit, and the difference it made in the truck's performance. This truck would endlessly code saying "cleaning exhaust filter" over and over. All of that nonsense is gone, the truck runs 100% better. AND went from 8.9 mpg to 15.1 mpg! Overly satisfied!
Everything went together good besides having to figure out the installation with only pictures. A video or better installation instructions would have been very helpful. Truck runs and sounds great now!
I was a little scared it would make the truck sound like a soda can but it actually sounds deeper and way better so I can’t complain easy to install ( if you have the long bed you may need to cut back 4” off one of the middle pipes to get the hangers to line up very easy solution make sure you cut the side that doesn’t have a bell end)
be sure to update mini Maxx with the latest firmware 2.0.0.8 FIRST! I learned that lesson😟
I also on my 2019 ram ended up plugging OBD bypass into middle row fourth one up after doing that I got zero codes truck runs great !! customer service isn't a whole lot of help mini maxx responds to emails but not quickly.
The product is great. Does what it's designed to do.
The instructions? Not so much. Luckily, the Customer Service people do their best when emailed and walk you through the process start to finish. The only other thing I'd like to see are the basic beginning settings for setting up "defuel". Every engine is different (Ford/Chevy/Dodge) and finding this info through forums is terrible.
I currently have the DPF deleted, the EGR turned off, and the race pipe has a 27" stainless resonator added to keep it quiet. It rolls coal on "Extreme" and the increase in power on "Stock" is very apparent. I run it on "Stock" 100% of the time and gained over 2 mpg so far on the first tank.
2013 F350 Crew Cab Dually 50225 miles on odometer. No rust anywhere, pristine Cali truck. I guess the original owner couldn't afford to drive it. LOL
It was packaged very nicely, quality is top notch and installation was very easy. Had installed in about an hour. That was taking my time and removing the old exhaust. Would highly recommend!
The craftsmanship is superb and wish I could say the same for the OEM Plastic CCV box. The four security screws were challenging and used Irwin external extractors versus easy outs.
I received both the EGR and Downpipe delete kit quick but there is no Tuner! No tracking number for the tuner and says all my parts have been delivered! What the heck no one spent a grand on a straight pipe and EGR! However they did fix it promptly and I did receive the tuner! So I would say five stars
Honestly, the exhaust was much nicer than I expected fitment wise. It fit just as well if not better than exhaust systems I have installed in the past that were a few hundred more dollars. Shipping time was pretty good as well… received it the same week I ordered it. That’s about all I can speak on for now as I have only put about 100 miles on it.
Everything you need and nothing you don't. The parts install really impressively smoothly.
Could definitely use better / ANY instructions, especially since youtube vids on deleting trucks have been taken down lately.
It took a day of searching and watching vids here and there to find out it is extremely important to go in a certain order:
1: install the tuner first
2: install a "smog equipment has been removed" tune even though the truck still has the equipment at the moment.
3: remove the dpf and egr bits
Money well spent. Install was simple. Do not misunderstand simple with easy. Although it was easy for me. Install of the MINI MAXX V2 was a bit different. The video provided on the site was not how my installation went. In fact it was very different. With that, it did go as expected. The tuner does have some what of a learning curve, not very much info out there now with all the bureaucratic garbage we, in the US, have to contend with. It is out there, just TOUGH to glein. The removal of that gargantuan nightmare of an exhaust filter was not for the faint of heart. It is heavy, and the connectors on all those sensors can be challenging. It will be worth the struggle. The removal of the Extra Grace Required part was the hardest part for me. Having had my exhaust and turbo out 2 times, one of the bolt heads got damaged in the last re-install. That took a huge amount of patience and correctly applied downward force and a special tool. FYI THE PYROS DO NOT READ CORRECTLY ON 2011 F350 IT WILL ONLY READ 1193°!
Then the block off bypass parts, easy install. Looks great and does everything I expected. As a plumber I was able to use some expansion couplings and cut the water tubes and did not use the supplied hose. Then back on the ground to install the exhaust pipe. That was a challenge. The hanger bracket wasn't quite on par and was bent a bit. Nothing like a torch and a quality set of Pittsburgh 3/4" box end wrenches. Got that squared away, lined everything out and the slip joint went in nicely. I only used one of the 3 bolt flange bolts because I saved 2 of the pressed in studs. The down pipe connector flange was a special kind of hurrah. Perseverance, busted knuckle, and lots of upward pressure, accomplished that.! Overall I like the kit, don't like it doesn't come with instructions, but if you're buying this kit I'm betting you're already a mechanic anyway. HUGE THANKS TO SPETUNER.
One more thing, FedEx delivered my 1st kit to 2 wrong addresses, SPETUNER made it right and sent out a new kit for my. That is worthy of my review!