aFe 46-20454-B Aluminum Hot & Cold Intercooler Pipes | 2020-2025 GM 3.0L Duramax

Features:

• Increases horsepower and torque
• Smooth bends reduce airflow turbulence
• Minimizes pressure loss for better performance
• High-strength aluminum intercooler pipes
• Wrinkle black powder-coated finish
• Laser-etched aFe Power logo
• Includes heavy-duty silicone couplings
• SmartSeal stainless steel clamps included
• Billet quick-connect adaptor with o-ring
• 1/8in NPT ports for sensors or methanol
• Not CARB exempt, not for sale in California

Premium Intercooler Pipe Upgrade for 3.0L Duramax

If you’re looking to get more out of your 3.0L Duramax, upgrading the factory intercooler piping is a smart move—and the aFe Aluminum Hot & Cold Intercooler Pipes are built to deliver real, measurable gains. This kit replaces both the hot and cold side charge pipes with high-quality aluminum tubing, designed to increase airflow, reduce pressure loss, and hold up to the kind of boost pressure and heat that can push stock components to their limit. Let’s break it down. The hot side pipe handles the air coming straight out of the turbo. At this stage, the air is pressurized but still very hot, so it needs to move through the intercooler to drop the temperature before it hits the intake. The cold side pipe takes over after that, delivering cooler, denser air into the engine. With this aFe setup, both pipes are upgraded with smooth mandrel bends that improve airflow and reduce turbulence, which helps prevent power loss between the turbo and the intake.

Heavy-Duty Construction with Bolt-On Install

Compared to the factory plastic or rubber piping, this system flows more efficiently and adds long-term durability. The aluminum construction is far less prone to cracking under heat and pressure, and a wrinkle black powder coat finish adds a clean, stealthy look under the hood. Each pipe is also equipped with a 1/8” NPT port—perfect if you want to run water methanol injection or keep tabs on performance with a boost or temp sensor. But this kit doesn’t just stop at solid tubing. It includes heavy-duty, 5-ply reinforced silicone couplers for a secure seal and flexibility under load, plus stainless steel SmartSeal clamps to keep everything locked down. aFe also includes a factory-style billet quick-connect adapter with an O-ring for a leak-free fit right out of the box. Behind the wheel, you’ll notice improved throttle response and stronger midrange power. The engine feels more consistent, especially under sustained boost or towing loads. Installation is straightforward, with all hardware included, and it's a direct bolt-on fit for 2020–2025 GM 3.0L Duramax trucks.

Fits:

• 2021, 2022, 2023, 2024 Cadillac Escalade 3.0L Duramax
• 2020, 2021, 2022, 2023, 2024, 2025 Chevrolet Silverado 1500 3.0L Duramax
• 2020, 2021, 2022, 2023, 2024, 2025 GMC Sierra 1500 3.0L Duramax
• 2021, 2022, 2023, 2024, 2025 Chevrolet Tahoe 3.0L Duramax
• 2021, 2022, 2023, 2024, 2025 GMC Yukon 1500 3.0L Duramax
• 2021, 2022, 2023, 2024, 2025 GMC Yukon XL 1500 3.0L Duramax
• 2021, 2022, 2023, 2024, 2025 Chevrolet Suburban 3.0L Duramax

Emissions Disclaimer: This product is not currently CARB exempt and is not available for purchase in California or for use on any vehicle registered with the California Department of Motor Vehicles.