Wehrli 17-24 Duramax L5P High Flow Intake Horn - Gloss Black

The WCFab L5P 4 in. High Flow Cast Aluminum Turbo Intake Horn for 2017-2025 Chevrolet Silverado or GMC 2500 / 3500 HD trucks equipped with the 6.6L Duramax Diesel is the largest and highest flowing turbo inlet on the market. Replaces the restrictive OEM plastic turbo mouthpiece to provide increased airflow to your turbocharger for improved engine performance and throttle response. Includes billet aluminum port for PCV system connection. Custom powder coated in the color of your choice. All aluminum construction provides increased durability and more aggressive turbo and engine sound. Made in USA! Pair it with our Stage 1 L5P Cold Air Intake Kits and Stage 1 High Flow Bundle Kits along with emissions compliant performance tuning and drop in performance turbochargers for maximum performance gains. - - Replaces the 12678756 turbo inlet in the following GM Part Numbers: 19432816 and 12682569 - - Supersedes WCFab part numbers: WCF100721 and WCF100833 - - Fitment Note: This product is also compatible with the L5D 6.6L Duramax found in 2019-2024 Medium Duty (4500, 5500, 6500) GM trucks. Wehrli Custom Fabrication 2017-2025 L5P Duramax High Flow Turbo Intake Horn Gloss Black

• True 4" Inlet Turbo Intake with smooth flowing transition to strategically designed anti-surge face which properly engages into turbo compressor cover for optimized airflow and drivability.
• Bolt On Upgrade, No Tuning Required. Works with stock trucks, no other modifications or upgrades necessary!
• Compatible with stock and OEM-style aftermarket drop in style turbochargers with larger compressor wheels
• Includes #10 ORB threaded billet aluminum hose barb for PCV connection
• Works with OEM and Aftermarket Cold Air Intake Systems
• 25% Greater Flow Area than OEM at Compressor Inlet
• CNC Machined Cast Aluminum Construction
• O-Ring Seal at Face of Turbocharger
• Flows 27% Better than Stock!
• Includes Mounting Hardware
• Custom Powder Coat Finish
• Made in USA

Upgrade your 2017-2025 Chevrolet Silverado or GMC 2500/3500 HD trucks with the Wehrli WCF100775-GB High Flow Cast Aluminum Turbo Intake Horn. Designed specifically for the 6.6L Duramax Diesel engines, this intake horn replaces the OEM plastic inlet with a true 4-inch diameter high flow inlet, significantly increasing airflow to your turbocharger. Its smooth transition to an anti-surge face ensures optimized airflow, enhancing engine performance and throttle response. The CNC-machined cast aluminum construction provides durability while delivering a more aggressive turbo and engine sound, giving your truck a noticeable performance boost.
Installation is straightforward, as this bolt-on upgrade requires no tuning or modifications for stock setups. It is compatible with stock and aftermarket drop-in turbochargers with larger compressor wheels, making it suitable for various performance upgrades. The included billet aluminum port with a #10 ORB threaded hose barb allows easy connection to the PCV system, ensuring proper ventilation and emission compliance. With 25% greater flow area than the stock inlet and 27% better flow efficiency, this intake horn helps your engine breathe better, resulting in improved horsepower and response. The custom powder coat finish not only enhances its appearance but also provides additional protection against corrosion. Made in the USA, this product is an ideal choice for enthusiasts seeking reliable, high-performance upgrades to maximize their Duramax engine's potential. Pair it with our Stage 1 Cold Air Intake Kits and high flow bundle kits for comprehensive performance improvements and emissions-compliant tuning.
Note: Compatible with the 2019-2024 L5D 6.6L Duramax in medium-duty GM trucks. Designed to replace the GM part numbers 19432816 and 12682569, this intake horn is a direct bolt-on upgrade that significantly improves airflow and engine efficiency without requiring additional modifications.

Features:

• True 4-inch inlet turbo intake with smooth transition and anti-surge face for optimized airflow

• Bolt-on upgrade, no tuning required, compatible with stock and aftermarket drop-in turbochargers

• Includes billet aluminum port with #10 ORB threaded hose barb for PCV connection

• 25% greater flow area at compressor inlet than OEM parts

• Flows 27% better than stock, improving horsepower and throttle response

• CNC-machined cast aluminum construction for durability and aggressive sound

• O-Ring seal at turbo face ensures a secure fit and airtight connection

• Custom powder coat finish enhances appearance and corrosion resistance

• Made in USA, designed for easy installation with included hardware

• Compatible with OEM and aftermarket cold air intake systems

Fitment:
Chevrolet Silverado 2500 HD Custom 2021
Chevrolet Silverado 2500 HD Custom 2022
Chevrolet Silverado 2500 HD Custom 2023
Chevrolet Silverado 2500 HD Custom 2024
Chevrolet Silverado 2500 HD Custom 2025
Chevrolet Silverado 2500 HD High Country 2017
Chevrolet Silverado 2500 HD High Country 2018
Chevrolet Silverado 2500 HD High Country 2019
Chevrolet Silverado 2500 HD High Country 2020
Chevrolet Silverado 2500 HD High Country 2021
Chevrolet Silverado 2500 HD High Country 2022
Chevrolet Silverado 2500 HD High Country 2023
Chevrolet Silverado 2500 HD High Country 2024
Chevrolet Silverado 2500 HD High Country 2025
Chevrolet Silverado 2500 HD LT 2017
Chevrolet Silverado 2500 HD LT 2018
Chevrolet Silverado 2500 HD LT 2019
Chevrolet Silverado 2500 HD LT 2020
Chevrolet Silverado 2500 HD LT 2021
Chevrolet Silverado 2500 HD LT 2022
Chevrolet Silverado 2500 HD LT 2023
Chevrolet Silverado 2500 HD LT 2024
Chevrolet Silverado 2500 HD LT 2025
Chevrolet Silverado 2500 HD LTZ 2017
Chevrolet Silverado 2500 HD LTZ 2018
Chevrolet Silverado 2500 HD LTZ 2019
Chevrolet Silverado 2500 HD LTZ 2020
Chevrolet Silverado 2500 HD LTZ 2021
Chevrolet Silverado 2500 HD LTZ 2022
Chevrolet Silverado 2500 HD LTZ 2023
Chevrolet Silverado 2500 HD LTZ 2024
Chevrolet Silverado 2500 HD LTZ 2025
Chevrolet Silverado 2500 HD WT 2017
Chevrolet Silverado 2500 HD WT 2018
Chevrolet Silverado 2500 HD WT 2019
Chevrolet Silverado 2500 HD WT 2020
Chevrolet Silverado 2500 HD WT 2021
Chevrolet Silverado 2500 HD WT 2022
Chevrolet Silverado 2500 HD WT 2023
Chevrolet Silverado 2500 HD WT 2024
Chevrolet Silverado 2500 HD WT 2025
Chevrolet Silverado 2500 HD ZR2 2024
Chevrolet Silverado 2500 HD ZR2 2025
Chevrolet Silverado 3500 HD High Country 2017
Chevrolet Silverado 3500 HD High Country 2018
Chevrolet Silverado 3500 HD High Country 2019
Chevrolet Silverado 3500 HD High Country 2020
Chevrolet Silverado 3500 HD High Country 2021
Chevrolet Silverado 3500 HD High Country 2022
Chevrolet Silverado 3500 HD High Country 2023
Chevrolet Silverado 3500 HD High Country 2024
Chevrolet Silverado 3500 HD High Country 2025
Chevrolet Silverado 3500 HD LT 2017
Chevrolet Silverado 3500 HD LT 2018
Chevrolet Silverado 3500 HD LT 2019
Chevrolet Silverado 3500 HD LT 2020
Chevrolet Silverado 3500 HD LT 2021
Chevrolet Silverado 3500 HD LT 2022
Chevrolet Silverado 3500 HD LT 2023
Chevrolet Silverado 3500 HD LT 2024
Chevrolet Silverado 3500 HD LT 2025
Chevrolet Silverado 3500 HD LTZ 2017
Chevrolet Silverado 3500 HD LTZ 2018
Chevrolet Silverado 3500 HD LTZ 2019
Chevrolet Silverado 3500 HD LTZ 2020
Chevrolet Silverado 3500 HD LTZ 2021
Chevrolet Silverado 3500 HD LTZ 2022
Chevrolet Silverado 3500 HD LTZ 2023
Chevrolet Silverado 3500 HD LTZ 2024
Chevrolet Silverado 3500 HD LTZ 2025
Chevrolet Silverado 3500 HD WT 2017
Chevrolet Silverado 3500 HD WT 2018
Chevrolet Silverado 3500 HD WT 2019
Chevrolet Silverado 3500 HD WT 2020
Chevrolet Silverado 3500 HD WT 2021
Chevrolet Silverado 3500 HD WT 2022
Chevrolet Silverado 3500 HD WT 2023
Chevrolet Silverado 3500 HD WT 2024
Chevrolet Silverado 3500 HD WT 2025
GMC Sierra 2500 HD AT4 2020
GMC Sierra 2500 HD AT4 2021
GMC Sierra 2500 HD AT4 2022
GMC Sierra 2500 HD AT4 2023
GMC Sierra 2500 HD AT4 2024
GMC Sierra 2500 HD AT4 2025
GMC Sierra 2500 HD AT4X 2024
GMC Sierra 2500 HD AT4X 2025
GMC Sierra 2500 HD Base 2017
GMC Sierra 2500 HD Base 2018
GMC Sierra 2500 HD Base 2019
GMC Sierra 2500 HD Base 2020
GMC Sierra 2500 HD Base 2021
GMC Sierra 2500 HD Base 2022
GMC Sierra 2500 HD Denali 2017
GMC Sierra 2500 HD Denali 2018
GMC Sierra 2500 HD Denali 2019
GMC Sierra 2500 HD Denali 2020
GMC Sierra 2500 HD Denali 2021
GMC Sierra 2500 HD Denali 2022
GMC Sierra 2500 HD Denali 2023
GMC Sierra 2500 HD Denali 2024
GMC Sierra 2500 HD Denali 2025
GMC Sierra 2500 HD Denali Ultimate 2024
GMC Sierra 2500 HD Denali Ultimate 2025
GMC Sierra 2500 HD Pro 2023
GMC Sierra 2500 HD Pro 2024
GMC Sierra 2500 HD Pro 2025
GMC Sierra 2500 HD SLE 2017
GMC Sierra 2500 HD SLE 2018
GMC Sierra 2500 HD SLE 2019
GMC Sierra 2500 HD SLE 2020
GMC Sierra 2500 HD SLE 2021
GMC Sierra 2500 HD SLE 2022
GMC Sierra 2500 HD SLE 2023
GMC Sierra 2500 HD SLE 2024
GMC Sierra 2500 HD SLE 2025
GMC Sierra 2500 HD SLT 2017
GMC Sierra 2500 HD SLT 2018
GMC Sierra 2500 HD SLT 2019
GMC Sierra 2500 HD SLT 2020
GMC Sierra 2500 HD SLT 2021
GMC Sierra 2500 HD SLT 2022
GMC Sierra 2500 HD SLT 2023
GMC Sierra 2500 HD SLT 2024
GMC Sierra 2500 HD SLT 2025
GMC Sierra 3500 HD AT4 2020
GMC Sierra 3500 HD AT4 2021
GMC Sierra 3500 HD AT4 2022
GMC Sierra 3500 HD AT4 2023
GMC Sierra 3500 HD AT4 2024
GMC Sierra 3500 HD AT4 2025
GMC Sierra 3500 HD Base 2017
GMC Sierra 3500 HD Base 2018
GMC Sierra 3500 HD Base 2019
GMC Sierra 3500 HD Base 2020
GMC Sierra 3500 HD Base 2021
GMC Sierra 3500 HD Base 2022
GMC Sierra 3500 HD Denali 2017
GMC Sierra 3500 HD Denali 2018
GMC Sierra 3500 HD Denali 2019
GMC Sierra 3500 HD Denali 2020
GMC Sierra 3500 HD Denali 2021
GMC Sierra 3500 HD Denali 2022
GMC Sierra 3500 HD Denali 2023
GMC Sierra 3500 HD Denali 2024
GMC Sierra 3500 HD Denali 2025
GMC Sierra 3500 HD Denali Ultimate 2024
GMC Sierra 3500 HD Denali Ultimate 2025
GMC Sierra 3500 HD Pro 2023
GMC Sierra 3500 HD Pro 2024
GMC Sierra 3500 HD Pro 2025
GMC Sierra 3500 HD SLE 2017
GMC Sierra 3500 HD SLE 2018
GMC Sierra 3500 HD SLE 2019
GMC Sierra 3500 HD SLE 2020
GMC Sierra 3500 HD SLE 2021
GMC Sierra 3500 HD SLE 2022
GMC Sierra 3500 HD SLE 2023
GMC Sierra 3500 HD SLE 2024
GMC Sierra 3500 HD SLE 2025
GMC Sierra 3500 HD SLT 2017
GMC Sierra 3500 HD SLT 2018
GMC Sierra 3500 HD SLT 2019
GMC Sierra 3500 HD SLT 2020
GMC Sierra 3500 HD SLT 2021
GMC Sierra 3500 HD SLT 2022
GMC Sierra 3500 HD SLT 2023
GMC Sierra 3500 HD SLT 2024
GMC Sierra 3500 HD SLT 2025