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Floating assembled photo of the Banks Boost-Tubes for 2020+ L5P Duramax

Banks Power

4.5 (123)

Boost Tube Upgrade Kit

Name: Banks Power Boost Tube Upgrade Kit - Boost Tube Upgrade Kit
Brand: Banks Power
SKU: 40098308325573
Price: 698.0 USD
Availability: InStock
Rating: 4.6538 (51 reviews)

4.5 (1,234)

Sold 100+ last 30 days

20% off first order

$698.00$775.56

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Quantity

Color

Black

Quantity

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.

Reviews

4.7

78 ratings

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 · March 7, 2026