Banks massive 3.5in boost tubes are the largest charge air cooler pipes on the market, flowing 680 CFM and 87% 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 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. Key Features: Huge increase in size and flow over stock and competitors (3.5" vs 2.5"). Billet venturi couplers maintain boost pressure. Mandrel-bent aluminized steel construction. Constant diameter tubing for the best flow. Allow the turbocharger to spool up faster. Spring-loaded constant tension clamps. Improves airflow by 87% over stock. Flows 680 CFM vs 364 CFM stock. 5-ply heavy-duty silicone couplers. Greater cooling capacity. 2019 GMC SIERRA 3500 HD 6.6L DIESEL 2019 GMC SIERRA 2500 HD 6.6L DIESEL 2019 CHEVROLET SILVERADO 3500 6.6L DIESEL 2019 CHEVROLET SILVERADO 2500 6.6L DIESEL 2018 GMC SIERRA 3500 HD 6.6L DIESEL 2018 GMC SIERRA 2500 HD 6.6L DIESEL 2018 CHEVROLET SILVERADO 3500 6.6L DIESEL 2018 CHEVROLET SILVERADO 2500 6.6L DIESEL 2017 GMC SIERRA 3500 HD 6.6L DIESEL 2017 GMC SIERRA 2500 HD 6.6L DIESEL 2017 CHEVROLET SILVERADO 3500 6.6L DIESEL 2017 CHEVROLET SILVERADO 2500 6.6L DIESEL. Banks Boost Tubes are the largest charge air cooler pipes in the industry! Featuring a full mandrel bent 3.5 in. diameter compared to competitors' 3 in. or the the stock 2.5 in. crush-bent tubes. 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.. Boost Tube Upgrade Kit Red powder-coated (Set) for 2017-2019 Chevy/GMC 2500/3500 6.6L Duramax, L5P. Banks Power 17-19 Chevy/GMC 2500HD/3500HD Diesel 6.6L Boost Tube Upgrade Kit - Red. Up to 87% less restrictive vs stock. Flows 680 CFM vs 364 CFM stock. Boost Tube Upgrade Kit; 3.5 in.; Red Powder Coated; Set;. Boost Tube Upgrade Kit Red powder-coated (Set). Bung For Temperature Probe. Boost Tube Upgrade Kit. Boost Tube Upgrade. Intercooler Pipe. Boost Tube Kit

CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov