CAN BUS Plug Kit For 2017-2024 L5P 6.6 Duramax Chevy GMC

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Product Information +
- Brand: SPETUNER
- SKU: #10499
- Availability: Many in stock
- Product Type: CAN BUS Plug Kit
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PLEASE NOTE!
- Description
- FAQs
- Review + Q&A
L5P CAN Bus Plug Kit for 2017-2024 Duramax 6.6L Chevy/GMC
What is an L5P CAN Bus Plug and Why Do You Need It?
The L5P CAN bus plug is an essential component for owners of 2017-2024 Duramax 6.6L trucks looking to perform delete tuning. This plug kit replaces the NOx and DEF modules after the removal of the Diesel Particulate Filter (DPF) and Diesel Exhaust Fluid (DEF) systems, ensuring your truck’s Engine Control Module (ECM) continues to function smoothly post-modifications.
Key Features of the L5P CAN Bus Plug Kit
- Required for Delete Tuning: The L5P CAN plugs are a must-have when removing the DPF and DEF systems from your vehicle, ensuring your ECM doesn't receive faulty signals.
- Compatibility with Aftermarket Exhaust Systems: These CAN bus plugs L5P are perfect for use with aftermarket exhaust systems or delete pipes.
- Signal Management: The kit provides a closed signal to the ECM, ensuring proper vehicle operation even after major modifications.
- Perfect for Off-Road Use: The L5P CAN Bus plug kit is designed for off-road applications and vehicles with heavy tuning, ensuring optimal performance.
Why is the L5P CAN Bus Plug Kit Important for Your Duramax 6.6L Truck?
After modifying your truck's exhaust system, such as deleting the DPF/DEF, the L5P CAN bus plugs are needed to manage signals from your vehicle’s electronic systems. Without them, your truck may experience performance issues due to the ECM receiving incorrect or missing signals.
Installation and Compatibility
- Professional Installation Recommended: While the L5P CAN bus plug kit is essential for proper tuning, we recommend having it installed by professional mechanics. Improper installation can lead to performance issues or damage to your vehicle.
- Compatibility: This CAN bus plug kit is designed for 2017-2024 Silverado & Sierra 6.6L Duramax trucks. It ensures the vehicle runs optimally even after significant modifications, such as deleting the DPF or DEF systems.
How to Install the L5P CAN Bus Plug Kit
Installing the L5P CAN bus plugs requires technical knowledge. If you are not familiar with vehicle electrical systems, professional installation is highly recommended to avoid any damage.
Legal Information and Use
- Off-Road Use Only: The L5P CAN bus plugs are designed strictly for off-road use and are not legal for use on public roads, as they involve modifications that may violate pollution control laws.
- Check Local Laws: Before purchasing, check your local and state laws to confirm whether these modifications are legal in your area.
Warranty and Liability
- Warranty Void: Installing the L5P CAN bus plug kit will void your vehicle’s warranty. Consult your vehicle manufacturer before proceeding.
- No Liability: SPETUNER is not responsible for any damage or issues that may arise from the use of these parts. Installation is at your own risk.
While the L5P CAN bus plug kit is designed to enhance your vehicle's performance, we cannot guarantee specific performance gains. The kit is intended to ensure that your ECM operates properly after modifications.
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What is the L5P CAN Bus Plug Kit used for?
- The L5P CAN bus plug kit is used when removing the DPF/DEF systems from your Duramax 6.6L truck. It ensures that the ECM receives a properly closed signal for smooth operation.
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Will the L5P CAN Bus Plug Kit work with aftermarket exhaust systems?
- Yes, the kit is compatible with aftermarket exhaust systems and delete pipes, making it perfect for tuning and performance modifications.
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Can I install the L5P CAN Bus Plug Kit myself?
- While installation is possible for those with mechanical expertise, we recommend professional installation to ensure the system functions correctly and avoids damage.
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Is the L5P CAN Bus Plug Kit street-legal?
- No, the product is intended for off-road use only and may not comply with emissions laws for use on public roads. Always check your local regulations before purchasing.
my whole experience with this company has been a joke i have a lit i paid for and can not use tried to return it with in the 14 days to find out that you lied and said no return at all. I had to refund customer deposit and eat the useless kit
Still waiting for the build file so I can install the equipment. It's been a couple weeks now. Sent off the log file the info data file that they said they needed in order to send me the file order for the HP tuner so they can be used to program the PCM to be ready for the new equipment. That part seems to be taking a lot longer than anticipated. I thought that the equipment would come ready to work or that I would log on to the Internet be able to download the files that are needed. So far that's not the case.
Let customers speak for us
from 204 reviews
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!

DPF/DEF/EGR Delete 2008-2010 Ford 6.4L Powerstroke All-in-One Kit

Easiest and nicest exhaust I've ever installed.

The All-in-One Kit I used it on a 2020 3.0L Powerstroke. The fit was perfect.
What I Liked
Performance Gains
After installing the kit and applying a proper tune (Found separately), there was a noticeable improvement in throttle response and turbo spool. The freer exhaust flow helps reduce backpressure, letting the engine breathe better.
Cleaner Running, Reduced Soot
With the EGR system removed, I noticed less carbon and soot buildup in the intake path. Over time, this means fewer maintenance headaches from clogged EGR coolers or passages.
All-in-One Package
It comes with everything needed (delete plates, piping, block-offs) so you don’t have to hunt down individual parts. This makes the upgrade more cohesive and less fragmented.
Good Material Quality

I love red, parts fitted precisely!

Quality products, easy installation and works well

Very thing was delivered on time and everything looks top quality haven’t put it in yet can’t wait to see what it does

Standard 2011+ Ford 6.7L Powerstroke CCV Reroute/Delete w/Catch Can Internal&External Kit

Quality checks out good job guys not scamming much love