# aFe Power 48-34145 Twisted Steel 1.75" Short Tube Header for 2020-2025 Chevrolet Express 2500 Base, Ls, Lt 6.6L and More ### Performance Overview aFe Power's new Twisted Steel header delivers an astounding 12hp and 19lbs. x ft. torque while outflowing the factory exhaust manifold. aFe engineers have designed a header that features a symmetrical tube design for optimum balance and efficiency of exhaust flow. To eliminate dead space that can cause turbulence and hindering flow that formed collectors are prone to produce, a true merged collector and optimized tube lengths are used for true pulse control technology improving flow and performance. 100% TIG-Welded construction ensures optimal strength and durability. The smooth curves and increased diameter of this header help remove restriction and keep exhaust gas flowing smoothly for improved performance and durability on and off the trails. All components are supplied for a hassle-free installation with no modifications necessary. ### Key Features - Brand: aFe Power - Part number: 48-34145 - Product type: Twisted Steel 1.75" Short Tube Header - Designed for the compatible vehicle applications listed on this page ### Vehicle Fitment - 2021 Chevrolet Express 2500 Base, Ls, Lt 6.6L - 2022 Chevrolet Express 2500 Base, Ls, Lt 6.6L - 2023 Chevrolet Express 2500 Base, Ls, Lt 6.6L - 2024 Chevrolet Express 2500 Base, Ls, Lt 6.6L - 2025 Chevrolet Express 2500 Base, Ls, Lt 6.6L - 2021 Chevrolet Express 3500 Base, Ls, Lt 6.6L - 2022 Chevrolet Express 3500 Base, Ls, Lt 6.6L - 2023 Chevrolet Express 3500 Base, Ls, Lt 6.6L ### FAQ **Will this fit my vehicle?** Please verify your year, make, model, position, and any fitment notes using the compatibility list above before purchase. **What part number is this?** The listed part number is 48-34145. **Is this product designed for direct replacement?** Yes. This product is intended to match compatible vehicle applications listed in the fitment section. **Should I confirm fitment before ordering?** Yes. Always compare your original part, position, and vehicle details with the fitment chart before ordering. ### Common Searches - Twisted Steel 1.75" Short Tube Header for Chevrolet Express 2500 Base, Ls, Lt 6.6L - 48-34145 fitment - aFe Power Twisted Steel 1.75" Short Tube Header - 2020 Chevrolet Express 2500 Base, Ls, Lt 6.6L Twisted Steel 1.75" Short Tube Header ### Vehicle Fitment Table Year Make Model Position Fitment Precision Note 2021 Chevrolet Express 2500 Base, Ls, Lt 6.6L 2022 Chevrolet Express 2500 Base, Ls, Lt 6.6L 2023 Chevrolet Express 2500 Base, Ls, Lt 6.6L 2024 Chevrolet Express 2500 Base, Ls, Lt 6.6L 2025 Chevrolet Express 2500 Base, Ls, Lt 6.6L 2021 Chevrolet Express 3500 Base, Ls, Lt 6.6L 2022 Chevrolet Express 3500 Base, Ls, Lt 6.6L 2023 Chevrolet Express 3500 Base, Ls, Lt 6.6L 2024 Chevrolet Express 3500 Base, Ls, Lt 6.6L 2025 Chevrolet Express 3500 Base, Ls, Lt 6.6L 2021 Chevrolet Express 4500 Base 6.6L 2022 Chevrolet Express 4500 Base 6.6L 2020 Chevrolet Silverado 2500 Hd Custom, High Country, Lt, Ltz, Wt 6.6L 2021 Chevrolet Silverado 2500 Hd Custom, High Country, Lt, Ltz, Wt 6.6L 2022 Chevrolet Silverado 2500 Hd Custom, High Country, Lt, Ltz, Wt 6.6L 2023 Chevrolet Silverado 2500 Hd Custom, High Country, Lt, Ltz, Wt 6.6L 2024 Chevrolet Silverado 2500 Hd Custom, High Country, Lt, Ltz, Wt, Zr2 6.6L 2025 Chevrolet Silverado 2500 Hd Custom, High Country, Lt, Ltz, Wt, Zr2 6.6L 2020 Chevrolet Silverado 3500 Hd High Country, Lt, Ltz, Wt 6.6L 2021 Chevrolet Silverado 3500 Hd High Country, Lt, Ltz, Wt 6.6L 2022 Chevrolet Silverado 3500 Hd High Country, Lt, Ltz, Wt 6.6L 2023 Chevrolet Silverado 3500 Hd High Country, Lt, Ltz, Wt 6.6L 2024 Chevrolet Silverado 3500 Hd High Country, Lt, Ltz, Wt 6.6L 2025 Chevrolet Silverado 3500 Hd High Country, Lt, Ltz, Wt 6.6L 2020 Gmc Sierra 2500 Hd At4, Base, Denali, Sle, Slt 6.6L 2021 Gmc Sierra 2500 Hd At4, Base, Denali, Sle, Slt 6.6L 2022 Gmc Sierra 2500 Hd At4, Denali, Pro, Sle, Slt 6.6L 2023 Gmc Sierra 2500 Hd At4, Denali, Pro, Sle, Slt 6.6L 2024 Gmc Sierra 2500 Hd At4, At4X, Denali, Pro, Sle, Slt 6.6L 2025 Gmc Sierra 2500 Hd At4, At4X, Denali, Pro, Sle, Slt 6.6L ## Details - **Price:** 1816.65 CAD - **Vendor:** aFe Power - **Type:** Twisted Steel 1.75" Short Tube Header - **Tags:** 2020 Chevrolet Silverado 2500 Hd Custom, 2020 Chevrolet Silverado 3500 Hd High Country, 2020 Gmc Sierra 2500 Hd At4, 2020 Gmc Sierra 3500 Hd At4, 2021 Chevrolet Express 2500 Base, 2021 Chevrolet Express 3500 Base, 2021 Chevrolet Express 4500 Base 6.6L, 2021 Chevrolet Silverado 2500 Hd Custom, 2021 Chevrolet Silverado 3500 Hd High Country, 2021 Gmc Sierra 2500 Hd At4, 2021 Gmc Sierra 3500 Hd At4, 2022 Chevrolet Express 2500 Base, 2022 Chevrolet Express 3500 Base, 2022 Chevrolet Express 4500 Base 6.6L, 2022 Chevrolet Silverado 2500 Hd Custom, 2022 Chevrolet Silverado 3500 Hd High Country, 2022 Gmc Sierra 2500 Hd At4, 2022 Gmc Sierra 3500 Hd At4, 2023 Chevrolet Express 2500 Base, 2023 Chevrolet Express 3500 Base, 2023 Chevrolet Silverado 2500 Hd Custom, 2023 Chevrolet Silverado 3500 Hd High Country, 2023 Gmc Sierra 2500 Hd At4, 2023 Gmc Sierra 3500 Hd At4, 2024 Chevrolet Express 2500 Base, 2024 Chevrolet Express 3500 Base, 2024 Chevrolet Silverado 2500 Hd Custom, 2024 Chevrolet Silverado 3500 Hd High Country, 2024 Gmc Sierra 2500 Hd At4, 2024 Gmc Sierra 3500 Hd At4, 2025 Chevrolet Express 2500 Base, 2025 Chevrolet Express 3500 Base, 2025 Chevrolet Silverado 2500 Hd Custom, 2025 Chevrolet Silverado 3500 Hd High Country, 2025 Gmc Sierra 2500 Hd At4, 48-34145, aFe Power, AFE-48-34145, Air Filter, Air Intake, At4X, Auto Parts, Automotive, Base, Denali, Diesel Performance, Direct Replacement, Exhaust Performance, High Country, Ls, Lt, Lt 6.6L, Ltz, Performance Parts, Pro, Sle, Slt 6.6L, Twisted Steel 1.75" Short Tube Header, Vehicle Fitment, Wt, Wt 6.6L, Zr2 6.6L ## Variants | Variant | Price | Available | |---------|-------|-----------| | Default Title | 1816.65 CAD | In stock | ## Images - aFe Power 48-34145 Twisted Steel 1.75" Short Tube Header --- > Source: [Standard Auto Part](https://www.standardautopart.com/products/afe-chevrolet-express-2500-base-twisted-steel-1-75-48-34145) > Updated: 2026-07-16