It’s more responsive in the pedal.
GM Duramax L5P CAN BUS Plug Kit (2017-2023)
2017-2019
Regular price
$154.00
Regular price
Sale price
$154.00
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GM Duramax L5P (2017 - 2023)
GM Duramax L5P CAN BUS Plug Kit (2017-2023)
GM Duramax L5P CAN BUS Plug Kit (2017-2023)
SKU: SKU:AC-Plug-L5P-17
Regular price
$154.00
Regular price
Sale price
$154.00
Quantity
Couldn't load pickup availability
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Introduction
The Duramax L5P CAN BUS Plug Kit is an essential component for 2017–2023 Silverado and Sierra 6.6L L5P diesel trucks running delete tuning. Designed to support DPF and DEF removal, this plug kit ensures proper ECM communication after emissions components are removed, preventing fault signals that can lead to drivability and performance issues.
Features
- Designed specifically for 2017–2023 GM 6.6L L5P Duramax diesel trucks
- Required for DPF and DEF delete tuning applications
- Replaces factory NOx and DEF module connections after removal
- Sends a closed CAN BUS signal to the ECM
- Supports aftermarket exhaust systems and delete pipes
- Plug-and-play design for simplified installation
- Built for off-road and competition-use vehicles
Benefits
- Prevents ECM errors caused by missing emissions modules
- Maintains stable engine operation after DPF/DEF removal
- Ensures reliable communication within the CAN BUS system
- Supports aggressive tuning and heavily modified diesel setups
- Helps avoid performance issues related to faulty sensor signals
Compatibility
| Make | Chevrolet | GMC |
|---|---|---|
| Model | Silverado 2500HD / 3500HD | Sierra 2500HD / 3500HD |
| Year Range | 2017-2023 | 2017-2023 |
| Engine | GM 6.6L L5P Duramax Turbo Diesel V8 | GM 6.6L L5P Duramax Turbo Diesel V8 |
Technical Specifications
- Application: CAN BUS signal management for delete tuning
- Engine Platform: GM Duramax L5P
- Function: Closed signal emulator for NOx/DEF modules
- Installation Type: Plug-and-play
- Intended Use: Off-road / competition only
Installation & Notes
- Installs after removal of factory DPF and DEF components
- Designed to be used with aftermarket exhaust or delete pipes
- Delete tuning is required for proper operation
- For off-road and competition use only; not legal for on-road emissions-controlled vehicles
Frequently Asked Questions
Why is this CAN BUS plug kit required for delete tuning?
When DPF and DEF systems are removed, the L5P ECM no longer receives expected signals. This plug kit provides a closed signal to prevent fault codes and performance issues.
Will this work with aftermarket L5P exhaust systems?
Yes, it is designed specifically for trucks running aftermarket exhausts or delete pipes.
Does this kit replace L5P sensors or modules?
L5P plugs replace the electrical connection of the NOx and DEF modules after they are physically removed.
Is tuning required when using this L5P plug kit?
Yes, proper delete tuning is required for correct engine operation.
2017-2023 Chevrolet Silverado / GMC Sierra 2500/3500 6.6L
Shipping Policy at Tuner Depot
At Tuner Depot, we understand the importance of timely delivery for your performance parts. We're committed to ensuring a seamless shipping experience, striving to dispatch your orders with utmost efficiency and speed.
Our Shipping Policy: Our aim is to dispatch all orders within two business days, providing you with a quick and efficient processing time. However, unforeseen circumstances beyond our control may occasionally impact shipping times.
Factors Affecting Shipping:
- Weather Conditions: Adverse weather conditions such as rain, snow, or sleet may affect delivery timelines. We will make every effort to minimize any delays.
- Holiday Periods: Please note that our shipping center will be closed during holidays. We will resume shipping promptly on the next business day. Allow for potential delays during peak seasons, but rest assured, we will keep you informed every step of the way.
- Staff Availability: Unforeseen circumstances can occasionally affect our staffing levels, possibly leading to minor delays. We are committed to swiftly resolving any issues to maintain our high standards of service.
We genuinely appreciate your understanding and patience during any unexpected obstacles. Be assured that we will utilize every resource available to deliver your performance parts promptly.
Warranty
Hardware components are covered by Tuner Depot's standard warranty. Tuning devices and software carry manufacturer warranty terms. Use of these products will void your vehicle's factory warranty. Please confirm with your manufacturer before installation.
Off-Road Use Only
These products are intended for off-road, race, and competition use only and may not be legal for use on public highways where emissions laws apply. Check your local and state regulations before purchase.
Customer Reviews
Overall rating: 4.6 / 5 from 178 reviews.
Fitment wasn’t the greatest could improve a lot
6.6L Duramax L5P 5 Inch Downpipe-Back Exhaust System | 2017–2026
Tuner depot was very helpful I thought I screwed up on the tune part and flashing the ecm but there customer service told me I didn’t mess it up and helped me through it but one thing for sure is nothing to do with tuner depot but no one every tells you on a first time doing one of these trucks the amount of hours it takes it took me almost 30 hours which if I had the right tools and confidence I could of probably cut it down to about 20 but kit works great it’s got awesome power now and I’ll be doing the down pipe very soon to I highly recommend just buying it and getting it over with because the truck is still very quiet almost like it’s a notch above stock
GM Duramax L5P All-In-One DPF/DEF/EGR Delete Kit (2017-2025)
Just got them installed on my truck yesterday and cannot believe the increase in performance! Can’t wait to take it on a road trip already see more power increase and fuel mileage. Unbelievable would do it again tomorrow!
Love the sound of the straight exhaust especially on the Dirtymax they just sound badass without a muffler
I purchased the efi live sotf tunes along with Dpf delete kit, dpf was good quality, tuner worked with me and not only sent my autocal loaded with a sotf tune but also sent me a few single tunes to use until I installed the switch, the only negative was that 130hp was the max power tune single or switch on the fly, but over all I was pretty happy and service was very good throughout.
Love it
still waiting
nice sound without drawing unwanted attention
6 weeks was to long without updates
6.6L Duramax L5P Cold Air Intake | 2017-2026 Sierra/ Silverado
Very easy to work with! Everything fit as it should
6.6L Duramax L5P 5 Inch Downpipe-Back Exhaust System | 2017–2026
Pretty easy to install, works great
Works s expected
Great product
Timely delivery, great product NOT cheap junk.
L5P Downpipe 3.5 Inch Turbo Direct Pipe | 2017-2026 GMC Chevrolet
Thank you!
Great communication
Sounds great easy installation
6.6L Duramax L5P 5 Inch Downpipe-Back Exhaust System | 2017–2026
Did not fix on the fling correctly where the downpipe sits and was pushing upwards towards frame
6.6L Duramax L5P CAT & DPF Delete Pipe | 2017–2026 GMC/Chevy
Pretty straight forward install
6.6L Duramax L5P 5 Inch Downpipe-Back Exhaust System | 2017–2026
Helped quiet down the straight 4" pipe
Should come with clamps
Everything went smooth and lined up great just wish it would’ve came with instructions
6.6L Duramax L5P 5 Inch Downpipe-Back Exhaust System | 2017–2026
Customer service absolutely sucks!!!!
Great product
L5P Downpipe 3.5 Inch Turbo Direct Pipe | 2017-2026 GMC Chevrolet
Worked and fit as expected
Perfect sound
Could have come with some kind of directions. Made it through it ok but a little direction would have been nice. Overall everything works as it should.
Sounds great not to loud
Before installing never had a code after install getting low fuel rail pressure code under load. If I keep RPMs up just a little ( by switching to manual shift and never come out of 5 gear Allison 6 speed trans) will work fine . If u shift to 6th gear lower RPM as soon as u go up a little incline it starves for fuel and goes into reduced power mode. But if u mash the excelsior and down shifts it will take off like a rocket.
Worked perfectly.
6.6L Duramax L5P 5 Inch Downpipe-Back Exhaust System | 2017–2025
Sounds good.
I received a product that was very different from what I ordered, and I have tried to contact you but haven't received a response.
6.6L Duramax L5P Cold Air Intake | 2017-2026 Sierra/ Silverado
Truck has a nice rumble but not excessively load like a straight pipe.
Muffler has great sound, no restrictions. The best part of the whole deal was the outstanding service and shipping that Tuner Depot provided. Would definitely use them again.
Fit was very good and looks great on my vehicle.
6.6L Duramax L5P 5 Inch Downpipe-Back Exhaust System | 2017–2025
Sound is exactly what I was looking for.
Was a little nervous if it was going to show up, nice quality and ease of install would purchase again
GM Duramax 6.6L - Shibby Engineering Tuner Harness Plug Kit (2011-2023)
Excellent
Nice mellow tone and quiet, no diesel is quiet but this muffler makes trips comfortable with no throwing noise at highway speeds.
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