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Wehrli  |  SKU: WCFWCF100775-FB
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Wehrli 17-26 GM Duramax L5P High Flow Intake Horn - Flat Black

Sale price USD 26100 Regular price USD 26907

Can I pick up my order or have it installed at your shop?

Absolutely. We offer local pickup on most products and full professional installation at our shop in Washington, MO. Whether you just want to grab your parts or have our techs handle the install, we’ve got you covered. Give us a quick call at 636-429-7020 or message us to schedule a visit — we’ll make sure the parts are ready when you arrive.

How do I know if this part fits my vehicle?

Unsure if it’ll fit? No problem — that’s what we’re here for. Send us your vehicle’s year, make, and model, and we’ll verify fitment before you order. We can also point you toward compatible upgrades or supporting parts if needed.

What if I need to return a product or it’s defective?

Most unused items can be returned within 30 days in their original packaging. Some products are covered by a manufacturer’s warranty as well. If something arrives damaged or doesn’t meet your expectations, just let us know — we’ll help you get it replaced, refunded, or repaired. (Tracking updates are also emailed automatically once your order ships.)

What's the lead time on custom or fabricated parts?

Many of our parts are built to order — especially fabricated or performance components. These can take additional time to produce before shipping. Lead times vary by manufacturer and demand, but we’ll always keep you updated along the way. If you’re working on a tight schedule, reach out before ordering at 636-429-7020 and we’ll confirm current availability or estimated ship dates.

Description

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.

This Part Fits:

Year Make Model Submodel
2021-2025 Chevrolet Silverado 2500 HD Custom
2017-2025 Chevrolet Silverado 2500 HD High Country
2017-2025 Chevrolet Silverado 2500 HD LT
2017-2025 Chevrolet Silverado 2500 HD LTZ
2017-2025 Chevrolet Silverado 2500 HD WT
2024-2025 Chevrolet Silverado 2500 HD ZR2
2017-2025 Chevrolet Silverado 3500 HD High Country
2017-2025 Chevrolet Silverado 3500 HD LT
2017-2025 Chevrolet Silverado 3500 HD LTZ
2017-2025 Chevrolet Silverado 3500 HD WT
2020-2025 GMC Sierra 2500 HD AT4
2024-2025 GMC Sierra 2500 HD AT4X
2017-2021 GMC Sierra 2500 HD Base
2017-2025 GMC Sierra 2500 HD Denali
2024-2025 GMC Sierra 2500 HD Denali Ultimate
2022-2025 GMC Sierra 2500 HD Pro
2017-2025 GMC Sierra 2500 HD SLE
2017-2025 GMC Sierra 2500 HD SLT
2020-2025 GMC Sierra 3500 HD AT4
2017-2021 GMC Sierra 3500 HD Base
2017-2025 GMC Sierra 3500 HD Denali
2024-2025 GMC Sierra 3500 HD Denali Ultimate
2022-2025 GMC Sierra 3500 HD Pro
2017-2025 GMC Sierra 3500 HD SLE
2017-2025 GMC Sierra 3500 HD SLT