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. 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.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 venturi couplers maintain boost pressure. 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

This Part Fits:

Year	Make	Model	Submodel
2020-2026	Chevrolet	Silverado 2500 HD	Custom
2020-2026	Chevrolet	Silverado 2500 HD	High Country
2020-2026	Chevrolet	Silverado 2500 HD	LT
2020-2026	Chevrolet	Silverado 2500 HD	LTZ
2020-2026	Chevrolet	Silverado 2500 HD	WT
2024-2026	Chevrolet	Silverado 2500 HD	ZR2
2020-2026	Chevrolet	Silverado 3500 HD	High Country
2020-2026	Chevrolet	Silverado 3500 HD	LT
2020-2026	Chevrolet	Silverado 3500 HD	LTZ
2020-2026	Chevrolet	Silverado 3500 HD	WT
2020-2026	GMC	Sierra 2500 HD	AT4
2024-2026	GMC	Sierra 2500 HD	AT4X
2020-2021	GMC	Sierra 2500 HD	Base
2020-2026	GMC	Sierra 2500 HD	Denali
2024-2026	GMC	Sierra 2500 HD	Denali Ultimate
2022-2026	GMC	Sierra 2500 HD	Pro
2020-2026	GMC	Sierra 2500 HD	SLE
2020-2026	GMC	Sierra 2500 HD	SLT
2020-2026	GMC	Sierra 3500 HD	AT4
2020-2021	GMC	Sierra 3500 HD	Base
2020-2026	GMC	Sierra 3500 HD	Denali
2024-2026	GMC	Sierra 3500 HD	Denali Ultimate
2022-2026	GMC	Sierra 3500 HD	Pro
2020-2026	GMC	Sierra 3500 HD	SLE
2020-2026	GMC	Sierra 3500 HD	SLT