SKU: 18800588899

Banks Boost Tube Upgrade Kit 20-25 GM 6.6L Duramax L5P

Sale price$314.10 Regular price$349.00
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Description

Banks Boost Tube Upgrade Kit 20-25 GM 6.6L Duramax L5PHave you upgraded your L5P with a cold air intake, maybe a programmer, but looking for some more power and boost? The factory intercooler pipes on each side of your intercooler are a measly 2. 5" diameter and built from a combination of plastic, rubber, and metal, making them highly susceptible to cracking, leaving you stranded on the side of the road. Banks massive 3. 5" boost tubes are the largest on the market, flowing more air than stock. Smooth

Have you upgraded your L5P with a cold air intake, maybe a programmer, but looking for some more power and boost? The factory intercooler pipes on each side of your intercooler are a measly 2.5" diameter and built from a combination of plastic, rubber, and metal, making them highly susceptible to cracking, leaving you stranded on the side of the road. Banks massive 3.5" boost tubes are the largest on the market, flowing 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. Made of high-quality aluminized steel, Banks Boost Tubes allow for a quicker turbo spool by improving boost pressure retention (increasing air density) between turbo, intercooler, and intake resulting in maximum horsepower.

The Banks Tube Upgrade Kit works with the stock Duramax intake elbow and intercooler by using proprietary high-strength 5-ply silicone couplers and unique to the 2020-2024 model, a pair of billet aluminum cold-side adapters. These couplers for the intercooler connection and the throttle body openings, are specially made for the airflow requirements on the L5P and feature a venturi-like taper on their inside diameter maintaining boost pressure and volumetric flow.

INDUCTION PERFECTION
Revised for the 2020-2025 L5P, Banks Power has looked at the new design restrictions and engineered an induction solution to fit it. Even with the new engine bay layout with even tighter fitment under the hood, Banks engineers were still able to maintain a full 3.5" diameter on both the hot and cold side of their boost tubes.

GOING THE EXTRA MILE
With the release of the 2020 L5P platform, GM has revised, moved, and updated several components throughout the engine bay. This includes not only the routing of the charge air pipes, but also material construction and connection mechanisms. Banks' 2020-2024 L5P Boost Tubes now feature a tapered billet coupler and quick connect on both ends of the pipe. No other manufacturer of intercooler pipes use this method of mounting.

Banks engineers used CFD simulations to design the perfect taper and unique double parabolic shape on both ends to maximize airflow and reduce turbulence at the connection points. When you engineer the largest intercooler pipes out there, you have to make sure they connect properly and install easily too.

DO IT RIGHT
For the 2020-2025 L5P, GM decided to go with a near full rubber hose design on the cold side. While this might make assembly easier at the GM plant in Ohio, the flex and swelling this hose provides leaves additional performance on the table. Banks boost tubes will never crack or dry out like the the rubber OEM Charge Air Pipes. Banks Boost Tubes are mandrel bent from aluminized stainless steel and designed to resist deformation from clamping force and other stresses for unparalleled durability and strength.
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
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  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 18800588899

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CEZ
Cuba, US
★★★★★ 5
Great Fit for Wide Toes
Size: 5 Wide Big Kid, Color: Fuchsia
I should start by saying that these shoes were tested by an adult who happens to wear a child's size 5.5, ladies size 7.5 or 7W, and ordered a size 5W in the florescent pink. These shoes are way more comfortable than the other Saucony sneakers I own. The wide toe bed doesn't put any pressure on the outside of my feet and my pinky toes are loving the extra space. The insole is not removable in these shoes, but I found them to be comfortable enough without an extracurricular insole. I have only used these shoes for active days; running errands, doing chores, walking, but not for running or exercise. My adult feet and body found these shoes more suitable for walking, but for a younger person I would expect these to be great for exercise or daily wear. The color is super vibrant. I don't mind a bright shoe and I own a lot of colorful footwear, but these are shockingly pink. Then you combine that pink with the bright white sole, and it is borderline blinding. I have worn them a few times now and they definitely stand out. These would be a great option for a pink loving person, or someone looking for an eye catching shoe to punch up their wardrobe, but for me they're almost too much. These shoes are on par with my expectations for the brand, but I feel like they have an inflated price point, that most parents shopping for kids athletic shoes may struggle to justify. I know that finding shoes to accomidate wide feet can increase the price significantly, but I still think these shoes would be best purchased on sale.
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Reviewed in the United States on April 15, 2026
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Caralyn Blanchard
Lake Worth, US
★★★★★ 5
Perfect girls tennis shoes
Size: 7 Wide Big Kid, Color: Fuchsia
These shoes have been great for my daughter! They’re lightweight, comfortable, and supportive enough for everyday running around, school, and sports activities. My daughter said they felt comfortable right away with no break in time needed. The bright pink color is really cute in person, and the shoes seem well made and durable so far. They fit true to size and have good cushioning without feeling bulky or heavy.
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Reviewed in the United States on May 13, 2026
S
Siena
Charlottesville, US
★★★★★ 5
Stylish and comfortable
Size: 5 Wide Big Kid, Color: Fuchsia
I got these for my 9 year old who needed new sneakers. She loves all things pink and instantly loved the look of these shoes. They are extremely breathable which is great for running around and airing out those sweaty feet. The fact that they are wide is perfect for her as well; so many sneakers end up being narrow and confining. They fit great and look great and both mom and daughter are very happy with these!
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Reviewed in the United States on April 25, 2026
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Verified Purchase
Justa
Birmingham, US
★★★★★ 5
Comfortable, durable, affordable...what more could you want? Lol
These fit well and were comfortable for my son...and they lasted until he outgrew them. That's saying a lot for a 9-10 year old boy. Lol. They are a great deal for active kids.
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Reviewed in the United States on February 19, 2026
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Verified Purchase
Fighter D
Port Orchard, US
★★★★★ 5
Great School Shoe Option
No complaints from my 9 year old twin girls! Fit true to size. Look sharp.
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Reviewed in the United States on December 20, 2025

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