S&B Cold Air Intake 6.6L Duramax L5P, LML, LMM | 2007.5-2026 GMC Chevrolet
L5P (2020-2026)
Cotton Cleanable
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S&B Cold Air Intake 6.6L Duramax L5P, LML, LMM | 2007.5-2026 GMC Chevrolet
SKU: SKU:INT-SB-GM-20
Expected delivery date:
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Our S&B Cold Air Intake systems for Duramax trucks are designed to significantly reduce air restriction and improve airflow for 6.6L Duramax engines. Depending on the application, these systems deliver up to 53.06% better airflow than the stock intake. Each intake features a fully enclosed airbox that helps protect the filter from dirt and unwanted engine heat, allowing cooler, denser air to reach the engine for improved performance.
This Cold Air Intake is available for the following Chevrolet Silverado and GMC Sierra 2500/3500 6.6L Duramax applications:
Important: This kit is not compatible with Cab & Chassis trucks.
These Duramax cold air intake systems are engineered to reduce restriction and increase airflow compared to the factory intake. Depending on the specific application, airflow improvements range from 29.10% to 53.06% over stock. The fully enclosed airbox shields the filter from dirt while helping prevent hot engine-bay air from entering the intake system. This allows the engine to receive cooler, denser air for improved efficiency and performance.
Each intake includes a large, high-efficiency air filter designed to provide excellent filtration while supporting increased airflow. Filter options include 8-layer Cotton Cleanable or Dry Extendable media, allowing you to choose the filtration setup that best suits your needs. The enclosed airbox provides additional protection by helping keep dirt and engine heat away from the filter.
S&B engineers these intake systems to work with the vehicle's factory calibration as well as properly configured custom tuning. Applications equipped with a Mass Air Flow (MAF) sensor are precisely calibrated to maintain proper airflow readings and help prevent check engine lights caused by the intake system.
These intake systems are designed with multiple air inlet options to maximize airflow and provide greater flexibility. Depending on the application, a secondary inlet can be left open for additional airflow or sealed using the included silicone plug when you prefer to draw air primarily through the fender inlet.
The large-diameter intake tube is designed to create a smooth, direct path for air traveling into the engine while reducing unnecessary restriction. By improving the path and volume of incoming air, the intake supports increased airflow, engine efficiency, and overall performance.
S&B uses premium silicone components that provide a strong seal and improved durability compared to standard rubber. The silicone material is designed to withstand temperatures up to 400°F without cracking or tearing. Its high-friction surface also helps prevent filters and couplers from slipping off the intake tube during operation.
The one-piece enclosed airbox design includes an integrated seal to help block hot engine-bay air from entering the intake system. Cooler, denser intake air can improve overall engine performance and efficiency, making this an effective upgrade for Duramax owners looking to improve airflow while maintaining strong engine protection.
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:
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.
These items can be returned within 30 days of the purchase date, provided they are unopened, unused, and in their original packaging:
The following items are final sale and cannot be returned:
All items we sell include a 90-day manufacturer warranty.
If an item is being returned due to a manufacturer defect, it may be returned for a full refund, exchange, or replacement with a similar item of equal or lesser value.
For eligible items being returned for any other reason, the same options apply: full refund, exchange, or replacement with a similar item of equal or lesser value, provided the item meets the return requirements above.
All returns must be approved by our team before being sent back. We will provide a valid RMA number and prepaid return label for the return.
Please do not send any items back without an approved RMA and the return label provided by us, as returns sent without these will not be accepted or processed.
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.
Overall rating: 4.6 / 5 from 195 reviews.
Exhaust was too short, customer service eventually just quit responding after sending picture after picture of it being too short. The exhaust rubs on the transmission hanger bracket so I had to remove and cut that down. I would not buy this kit unless you want to spend extra time modifying it.
6.6L Duramax L5P CAT & DPF Delete Pipe | 2017–2026 GMC/Chevy
It’s more responsive in the pedal.
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.
Works good so far
Tunes are not working. We are on the 3rd tune and truck is running like garbage. Hopefully the 4th tune file will fix the issues.
As described and shipped quickly.
Worked like a champ
Takes some time but help from support was appreciated
Needs better instructions for install but it was quality parts.
Not sure I like the hanger options but it sounds good and was simple to install.
6.6L Duramax L5P 5 Inch Downpipe-Back Exhaust System | 2017–2026
Fits well.
Easy to install. Could use a printed copy of the installation procedure.
6.6L Duramax L5P Downpipe 3.5 Inch Turbo Direct Pipe | 2017-2026 GMC Chevrolet
Fit great.
Purchase multiple things from these guys always on time and great quality!
All good, just wished it came with down pipe.
6.6L Duramax L5P 5 Inch Downpipe-Back Exhaust System | 2017–2026
Easy install and like how it works.
Quality parts.
Delete kit was as it should be, only thing I’d say is the hardware is cheap and should come with bolts that can withstand heat so if a person ever had to remove them they won’t break. Also they don’t volunteer install directions which are super nice to have if you’ve never done one of these. I had to ask several times for the delete, ez lynk, and cam buss plug directions.
The ordering process was easy, the parts came fast and the response from the team has been incredible!
6.6L Duramax L5P 5 Inch Downpipe-Back Exhaust System | 2017–2026
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
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