What is the main benefit of upgrading to these larger boost tubes?

These larger 3.5-inch diameter tubes replace your stock 2.5-inch piping. This allows for significantly more airflow to the engine, helping the turbo spool faster and improving throttle response.

Are the billet aluminum adapters necessary for my 2020+ L5P engine?

Yes, the included billet aluminum cold-side adapters are unique to the 2020+ L5P models. They feature a Venturi-like taper to maintain boost pressure and volumetric flow, which is critical for this engine's airflow requirements.

What kind of clamps are used to secure the silicone couplers?

The kit uses spring-loaded constant tension clamps. These clamps help ensure a secure and consistent seal on the 5-ply heavy-duty silicone couplers, even under changing temperatures and boost pressures.

Banks Power 2020 GM 2500/3500 6.6L L5P Boost Tube Upgrade Kit - Red

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Specifications

Brand: Banks Power
Part #: 26005
UPC: 801279260054

Banks Power 2020 GM 2500/3500 6.6L L5P Boost Tube Upgrade Kit - Red

Name: Banks Power 2020 GM 2500/3500 6.6L L5P Boost Tube Upgrade Kit - Red
Brand: Banks Power
Price: 808.03 USD
Availability: InStock

$808.03

Only 7 left in stock

Fits 2020-2025 Chevrolet Silverado 2500 HD. This Banks Power boost tube upgrade kit replaces stock piping with larger, smoother tubes for improved airflow and quicker turbo spool.

Key Features

Direct fit — verified for 2020-2025 Chevrolet Silverado 2500 HD, 2020-2025 Chevrolet Silverado 3500 HD, 2020-2025 GMC Sierra 2500 HD, and 2020-2025 GMC Sierra 3500 HD.
Improves airflow by 26-45% over stock — the hot side flows 490 CFM vs stock 388 CFM, and the cold side flows 635 CFM vs stock 435 CFM.
Constant 3.5-inch diameter tubing for better airflow than stock (2.5-inch) and competitor pipes (up to 3.0-inch).
Billet aluminum venturi couplers on the cold side help maintain boost pressure and volumetric flow.
Mandrel-bent aluminized steel construction for strength and smooth airflow.
Allows the turbocharger to spool up faster, reducing lag and improving throttle response.

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Product Details

You get a red boost tube upgrade kit in this Banks Power kit for your 2020-2025 Chevrolet Silverado 2500 HD and 3500 HD, and 2020-2025 GMC Sierra 2500 HD and 3500 HD with the 6.6L L5P Duramax engine. This kit replaces the restrictive stock intercooler piping with larger, smoother tubes designed to let your turbocharger spool up faster and improve overall airflow.

The stock plastic pipes are replaced with 3.5-inch diameter mandrel-bent aluminized steel tubes. This is a full inch larger than your factory pipes and significantly larger than most competitor kits. The smooth bends and larger diameter reduce boost pressure loss, helping your turbo reach operating boost quicker. For the 2020+ L5P engine, this kit includes unique billet aluminum cold-side adapters. These adapters have a Venturi-like taper to maintain boost pressure and airflow volume, working with the stock intake components via 5-ply silicone hoses and spring-loaded constant tension clamps.