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Floating assembled photo of the Banks Boost-Tubes for 2020+ L5P Duramax
Photo of all the components used in the 2020+ L5P Banks Boost-Tubes
Comparison of Banks Boost Tubes vs Stock for 2020+ Duramax L5P
Comparison photo of the Banks vs Stock 2020+ L5P Cold-Side Boost-Tube
Detail photo of the dual billet cold-side couplers for the 2020+ L5P Boost-Tubes
Installed photo of the cold side 2020+ L5P Boost-Tubes
Installed photo of the Hot Side 2020+ L5P Boost-Tubes
Floating assembled photo of the Banks Boost-Tubes for 2020+ L5P Duramax
Photo of all the components used in the 2020+ L5P Banks Boost-Tubes
Comparison of Banks Boost Tubes vs Stock for 2020+ Duramax L5P
Comparison photo of the Banks vs Stock 2020+ L5P Cold-Side Boost-Tube
Detail photo of the dual billet cold-side couplers for the 2020+ L5P Boost-Tubes
Installed photo of the cold side 2020+ L5P Boost-Tubes
Installed photo of the Hot Side 2020+ L5P Boost-Tubes

These tubes are HUGE. Hardware is top-notch. Throttle response is better. I highly recommend!

  Timothy N — Lake Charles, LA

Key Features

  • Huge increase in size and flow over stock and competitors (3.5" vs 2.5")
  • Hot Side flows 490 CFM @ 12" vs stock 388 CFM
  • Cold Side flows 635 CFM @ 12" vs stock 435 CFM
  • Constant 3.5in diameter tubing for the best flow
  • Billet aluminum venturi couplers maintain boost pressure and do not break like stock
  • Mandrel-bent aluminized steel construction
  • Allow the turbocharger to spool up faster
  • Spring-loaded constant tension clamps
  • Improves airflow by over 26% and 45%
  • 5-ply heavy-duty Nomex woven silicone couplers
  • Bung for a temperature probe
About This Product

Banks massive 3.5" boost tubes are the largest on the market, flowing 26-45% more air than stock! Smooth mandrel-bent tubes deliver more air to your engine while reducing boost pressure loss resulting in quicker turbo spool and more power.
Specifications

Banks Boost Tubes are the largest charge air cooler pipes in the industry, measuring in at a full 3.5 inches. Every other competitive product on the market tops out at just 3.0 inches, and your factory pipes are only 2.5 inches with crushed bent corners and flimsy plastic components. By contrast, Banks Boost Tubes are made of high-quality aluminized steel for maximum strength and durability. With Banks Boost Tubes' smooth bends, your turbo can spool quicker thanks to improved boost pressure retention for maximum horsepower.

The Boost Tubes work with the stock Duramax intake components by using proprietary high-strength 5-ply silicone hoses. Unique to the 2020+ model, a pair of billet aluminum cold-side adapters are also used for the intercooler connection and the throttle body. These are specially made for the airflow requirements of the L5P and feature a Venturi-like taper on their inside diameter to maintain boost pressure and volumetric flow.
Why It's Better

BANKS BOOST TUBES FLOW BEST

Banks oversized charge air cooler pipes and pair of unique billet adapters results in less boost pressure loss from turbo to intake manifold.

With an 26-45% improvement in airflow, your turbo can spool faster and sustain boost pressure with less wasted energy and heat.

Banks Boost-Tubes allow your engine, and specifically your turbo, to work less hard in compressing intake air; this maximizes horsepower delivery and throttle response while reducing engine stress.

 Banks Power, Boost Tubes, Charge Air Cooler, Comparison vs stock

INDUCTION PERFECTION

Even with the tighter engine space in the 2020+ L5P, Banks engineers were still able to maintain a full 3.5" diameter on both the hot and cold side of our boost tubes.

Put up side by side with the factory intercooler piping, ours could practically eat the stock one whole!

The combination large smooth mandrel bends and steel construction put the Banks Boost-Tubes in a performance and durability class of their own.

 Banks Power, Boost Tubes, Charge Air Cooler, Comparison vs stock

GOING THE EXTRA MILE

GM revised, moved, and updated several components throughout the engine bay for the 2020+ L5P, including a new coupler system on the cold side.

 Banks Power L5P CAD Render

Our engineers used CFD simulations to design a pair of billet couplers for both ends of the cold side tube with a perfect taper and unique double parabolic shape to maximize airflow and reduce airflow restriction.

The shape and curvature of these couplers are critical to maintaining pressure efficiency throughout the intercooler system.
Banks Power unique billet couplers

DO IT RIGHT

For the 2020+ L5P, GM decided to go with a near full rubber hose design on the cold side.

While this design might have simplified production for GM, its added flex and hose swelling leaves potential performance on the table.

Built from mandrel bent steel, Banks Boost-Tubes will never flex, crack, or dry out like the OEM Charge Air Pipes. They are built to resist clamping force deformation and other stresses for unparalleled durability and strength.

 Banks Power, Boost Tubes, Intercooler Pipes, Charge Air Cooler, Banks vs Stock
This Boost Tube Upgrade Kit
fits the following vehicles:
click to expand

Chevrolet

Chevrolet Silverado 2500

  • Chevrolet Silverado 2500 | 6.6L Diesel 2026
  • Chevrolet Silverado 2500 | 6.6L Diesel 2025
  • Chevrolet Silverado 2500 | 6.6L Diesel 2024
  • Chevrolet Silverado 2500 | 6.6L Diesel 2023
  • Chevrolet Silverado 2500 | 6.6L Diesel 2022
  • Chevrolet Silverado 2500 | 6.6L Diesel 2021
  • Chevrolet Silverado 2500 | 6.6L Diesel 2020

Chevrolet Silverado 3500

  • Chevrolet Silverado 3500 | 6.6L Diesel 2026
  • Chevrolet Silverado 3500 | 6.6L Diesel 2025
  • Chevrolet Silverado 3500 | 6.6L Diesel 2024
  • Chevrolet Silverado 3500 | 6.6L Diesel 2023
  • Chevrolet Silverado 3500 | 6.6L Diesel 2022
  • Chevrolet Silverado 3500 | 6.6L Diesel 2021
  • Chevrolet Silverado 3500 | 6.6L Diesel 2020

GMC

GMC Sierra 2500 HD

  • GMC Sierra 2500 HD | 6.6L Diesel 2026
  • GMC Sierra 2500 HD | 6.6L Diesel 2025
  • GMC Sierra 2500 HD | 6.6L Diesel 2024
  • GMC Sierra 2500 HD | 6.6L Diesel 2023
  • GMC Sierra 2500 HD | 6.6L Diesel 2022
  • GMC Sierra 2500 HD | 6.6L Diesel 2021
  • GMC Sierra 2500 HD | 6.6L Diesel 2020

GMC Sierra 3500 HD

  • GMC Sierra 3500 HD | 6.6L Diesel 2026
  • GMC Sierra 3500 HD | 6.6L Diesel 2025
  • GMC Sierra 3500 HD | 6.6L Diesel 2024
  • GMC Sierra 3500 HD | 6.6L Diesel 2023
  • GMC Sierra 3500 HD | 6.6L Diesel 2022
  • GMC Sierra 3500 HD | 6.6L Diesel 2021
  • GMC Sierra 3500 HD | 6.6L Diesel 2020
Installation and Support
Owners Manual, Banks Boost Tube Upgrade Kit for 2020-2026 Chevy/GMC 2500/3500 6.6L Duramax L5P

Boost Tube Upgrade Kit

Red powder-coated (Set)

SKU #26005

2020-2026 Chevy/GMC 2500/3500 6.6L Duramax, L5P

26-45% improvement in Mass Airflow vs Stock
Increases throttle response and reduces turbo lag

HIGH-DEMAND ITEM SHIPS 2-3 WEEKS
$698.00
MSRP: $775.56
Add-Ons
2025+ L5P Oiled RAI with PCV & MAF Module
Banks Ram-Air®
$495.00
MSRP: $550.00
GOT QUESTIONS?
Talk with our experts
call 800-601-8072
50 state compliant
D-161-171
FAQs
INSTALL GUIDE
CALIFORNIA WARNING
Boost Tube Upgrade Kit
Add to cart

These tubes are HUGE. Hardware is top-notch. Throttle response is better. I highly recommend!

  Timothy N — Lake Charles, LA

Key Features

  • Huge increase in size and flow over stock and competitors (3.5" vs 2.5")
  • Hot Side flows 490 CFM @ 12" vs stock 388 CFM
  • Cold Side flows 635 CFM @ 12" vs stock 435 CFM
  • Constant 3.5in diameter tubing for the best flow
  • Billet aluminum venturi couplers maintain boost pressure and do not break like stock
  • Mandrel-bent aluminized steel construction
  • Allow the turbocharger to spool up faster
  • Spring-loaded constant tension clamps
  • Improves airflow by over 26% and 45%
  • 5-ply heavy-duty Nomex woven silicone couplers
  • Bung for a temperature probe
About This Product

Banks massive 3.5" boost tubes are the largest on the market, flowing 26-45% more air than stock! Smooth mandrel-bent tubes deliver more air to your engine while reducing boost pressure loss resulting in quicker turbo spool and more power.
Specifications

Banks Boost Tubes are the largest charge air cooler pipes in the industry, measuring in at a full 3.5 inches. Every other competitive product on the market tops out at just 3.0 inches, and your factory pipes are only 2.5 inches with crushed bent corners and flimsy plastic components. By contrast, Banks Boost Tubes are made of high-quality aluminized steel for maximum strength and durability. With Banks Boost Tubes' smooth bends, your turbo can spool quicker thanks to improved boost pressure retention for maximum horsepower.

The Boost Tubes work with the stock Duramax intake components by using proprietary high-strength 5-ply silicone hoses. Unique to the 2020+ model, a pair of billet aluminum cold-side adapters are also used for the intercooler connection and the throttle body. These are specially made for the airflow requirements of the L5P and feature a Venturi-like taper on their inside diameter to maintain boost pressure and volumetric flow.
Why It's Better

BANKS BOOST TUBES FLOW BEST

Banks oversized charge air cooler pipes and pair of unique billet adapters results in less boost pressure loss from turbo to intake manifold.

With an 26-45% improvement in airflow, your turbo can spool faster and sustain boost pressure with less wasted energy and heat.

Banks Boost-Tubes allow your engine, and specifically your turbo, to work less hard in compressing intake air; this maximizes horsepower delivery and throttle response while reducing engine stress.

 Banks Power, Boost Tubes, Charge Air Cooler, Comparison vs stock

INDUCTION PERFECTION

Even with the tighter engine space in the 2020+ L5P, Banks engineers were still able to maintain a full 3.5" diameter on both the hot and cold side of our boost tubes.

Put up side by side with the factory intercooler piping, ours could practically eat the stock one whole!

The combination large smooth mandrel bends and steel construction put the Banks Boost-Tubes in a performance and durability class of their own.

 Banks Power, Boost Tubes, Charge Air Cooler, Comparison vs stock

GOING THE EXTRA MILE

GM revised, moved, and updated several components throughout the engine bay for the 2020+ L5P, including a new coupler system on the cold side.

 Banks Power L5P CAD Render

Our engineers used CFD simulations to design a pair of billet couplers for both ends of the cold side tube with a perfect taper and unique double parabolic shape to maximize airflow and reduce airflow restriction.

The shape and curvature of these couplers are critical to maintaining pressure efficiency throughout the intercooler system.
Banks Power unique billet couplers

DO IT RIGHT

For the 2020+ L5P, GM decided to go with a near full rubber hose design on the cold side.

While this design might have simplified production for GM, its added flex and hose swelling leaves potential performance on the table.

Built from mandrel bent steel, Banks Boost-Tubes will never flex, crack, or dry out like the OEM Charge Air Pipes. They are built to resist clamping force deformation and other stresses for unparalleled durability and strength.

 Banks Power, Boost Tubes, Intercooler Pipes, Charge Air Cooler, Banks vs Stock
This Boost Tube Upgrade Kit
fits the following vehicles:
click to expand

Chevrolet

Chevrolet Silverado 2500

  • Chevrolet Silverado 2500 | 6.6L Diesel 2026
  • Chevrolet Silverado 2500 | 6.6L Diesel 2025
  • Chevrolet Silverado 2500 | 6.6L Diesel 2024
  • Chevrolet Silverado 2500 | 6.6L Diesel 2023
  • Chevrolet Silverado 2500 | 6.6L Diesel 2022
  • Chevrolet Silverado 2500 | 6.6L Diesel 2021
  • Chevrolet Silverado 2500 | 6.6L Diesel 2020

Chevrolet Silverado 3500

  • Chevrolet Silverado 3500 | 6.6L Diesel 2026
  • Chevrolet Silverado 3500 | 6.6L Diesel 2025
  • Chevrolet Silverado 3500 | 6.6L Diesel 2024
  • Chevrolet Silverado 3500 | 6.6L Diesel 2023
  • Chevrolet Silverado 3500 | 6.6L Diesel 2022
  • Chevrolet Silverado 3500 | 6.6L Diesel 2021
  • Chevrolet Silverado 3500 | 6.6L Diesel 2020

GMC

GMC Sierra 2500 HD

  • GMC Sierra 2500 HD | 6.6L Diesel 2026
  • GMC Sierra 2500 HD | 6.6L Diesel 2025
  • GMC Sierra 2500 HD | 6.6L Diesel 2024
  • GMC Sierra 2500 HD | 6.6L Diesel 2023
  • GMC Sierra 2500 HD | 6.6L Diesel 2022
  • GMC Sierra 2500 HD | 6.6L Diesel 2021
  • GMC Sierra 2500 HD | 6.6L Diesel 2020

GMC Sierra 3500 HD

  • GMC Sierra 3500 HD | 6.6L Diesel 2026
  • GMC Sierra 3500 HD | 6.6L Diesel 2025
  • GMC Sierra 3500 HD | 6.6L Diesel 2024
  • GMC Sierra 3500 HD | 6.6L Diesel 2023
  • GMC Sierra 3500 HD | 6.6L Diesel 2022
  • GMC Sierra 3500 HD | 6.6L Diesel 2021
  • GMC Sierra 3500 HD | 6.6L Diesel 2020
Installation and Support
Owners Manual, Banks Boost Tube Upgrade Kit for 2020-2026 Chevy/GMC 2500/3500 6.6L Duramax L5P

MADE-TO-ORDER ITEM

Shipment times may vary based on our production schedule. Average ship time 2-3 weeks.

Overall rating: 4.89 / 5 from 100 reviews.

AI Generated Review Summary

The Boost Tube Upgrade Kit by Banks offers larger 3.5" boost tubes that significantly improve air flow, leading to quicker turbo spool and more power. Customers appreciate the noticeable improvement in throttle response and power output, as well as the ease of installation and snug fit. The tubes are praised for their superior quality compared to OEM hoses, and they provide a noticeable reduction in lag and enhanced breathability.

Summary topics

  • Aesthetic Appeal (23%): A significant amount of customers expressed appreciation for how great the tubes look and how they enhance the engine performance.
  • Tube Superiority (12%): It was reported by customers that Banks tubes are far superior to the OEM soft rubber hoses.
  • Brand Reputation (11%): Customers raved about Banks products, praising their quality, customer service, and fast shipping.
  • Performance Improvement (12%): It was highlighted by customers that the improvement in throttle response and power output was noticeable and appreciated.
  • Ease of Installation (18%): A significant number of customers loved the easy installation process of the product, praising its ease of use and high performance.

Review topics: ["looks","improvement","difference","issues","fit","quality","instructions","side","video","customer service","power","tubes","color","feel","results","install","finish","sound","upgrade","banks","pipe","lag","truck","throttle response","gains","air intake","increase","clamps","turbo","chance"].

Review highlights

  • "The fit and finish is excellent, the install was super easy with both written and video instructions." — Adam D.
  • "These tubes are far superior to the oem, easy install and love the red color" — Josh H.
  • "Boost tubes look great, definite upgrade over the stock ones." — Kalib A.

Reviews

Magnificent!

"At first I was a little skeptical about the complexity of the installation but after reviewing the installation video and instructions I went for it, once you remove the stock system you immediately realize how bad it really is, garbage! The performance gain was incredible! So much smoother than expected and the engine just ran so much better that the whole family was impressed! Make sure that you get the rubber couplings snugged down to required torque specs as I missed one and the tube blew off during testing. Man these things are fabulous!"

— Robert W. (5/5)

Greatly appreciate Banks

"The kit was packaged great. During install I realized they had sent me the wrong O-ring. Called Banks and after a quick 15 minute phone call they had another one on the way. They overnighted a o-ring from California to Alabama in less than 24 hours. Everyone was respectful and apologetic."

— Jarod K. (5/5)

2020 L5P

"Perfect fit and function. Instructions were spot on and simple to follow. Installed these at same time as turbo inlet elbow and cold air intake and 5” exhaust Extremely happy with performance improvement."

— Timothy A. (5/5)

Looks great: connector confusion

"This looks and works great, just be warned the the fit is tight, and that the connectors are specific so you need to be careful which you use where. . . . . . . . be prepared to scrape some skin to get these in place!"

— Kenneth S. (5/5)

Notice a difference as soon

"Notice a difference as soon as you fire it up. Fit exact the walk through video on the banks site was perfect. Would have liked to have blue as my color but color doesn’t add horse power."

— Blair W. (5/5)

Banks parts

"Put the boost tubes, Ram air filter and Intake horn in my 2020 Chevy 2500HD and Love it. Next hopefully will be the oil pan, transmission cover and reared cover."

— Roger K. (5/5)

Great product

"Great product great material easy to install with basic tools"

— Derek G. (5/5)

2021 GMC Sierra 2500 HF

"Just had a Banks boost tube upgrade kit installed on my 2021 GMC Sierra Denali 2500HD Duramax and the quality of the kit is excellent. Much stronger than the factory tubes and the fitment is perfect. Definitely a solid upgrade"

— Jorge C. (5/5)

Increased MPH and better feel accelerating

"I put on the banks boost tubes and turbo inlet just prior to a 3k highway trip. I have a 2020 L5P 3500. The engine had quicker pick up and ran about 100 rpm lower at 70 MPH. Trip to TX from VA. I got about 2 mph increase than before. I went from 21 to 23 mph on average with the best 50 mile at 26. 7. I ordered the cold air intake. Interested to see what that will do."

— Scott v. (5/5)

Boost Tubes!!

"Great Upgrade for my 2024 2500. Definitely feels good towing and improved gas mileage so far. I also added the intake and turbo inlet at same time. Traveling on the open road has been better for sure!!"

— Jeramy L. (5/5)

Q&A

Will I need to tune my truck if I put these on?
Our boost tubes will work great on stock trucks, but can give even better performance after a tune.
Why was the hot side designed as a 2 piece instead of a smooth 1 piece? Is there any data showing More turbulence from the boot in the middle?
Hey thanks for messaging us, the two piece construction aids in the installation process and has little effect on the overall function of the pipes.
For the lp5 boost upgrade tube's can the be ordered in black or natural galvanized colors?
Boost tubes for the L5P Duramax platform are only ava are only available in Banks Red powder coat.
Is there much of a sound difference?
Very little.
Will this jeopardize my warranty or give me any issues with the dealer on my brand new 2022 L5P Duramax? I know it will help in ever aspect I just don’t want to deal with any crap from dealers if I have issues and need to take it in for repairs. Thanks
This largely depends on your local dealership and service writer. How strictly do they follow GM's guidelines vs. how much they value their customers. While many dealers embrace aftermarket accessories, others steer clear or worse. It's best to be honest with your service writer or tech. Before you make the purchase, ask them about the mod you're intending to make. If they advise against it, find a friendlier shop.