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Wehrli

Wehrli 17-19 Chevrolet 6.6L L5P Duramax 3.5in Intake Horn w/PCV Port - Flat Black

$234.00 $226.13 Save $7.87

SKU: W005 WCF100721-FB

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In Stock
Ships by Aug 10
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

Part #: WCF100721-FB

3 1/2" Turbo Intake Horn for the 2017-2019 L5P Duramax with factory style Turbo. The OEM plastic intake horn is 2.4" diameter and we experienced a 25HP Gain with our 3.5" Horn when used with a Max Effort Tune. Tuning not required, this horn will work with plug and play tuners or OEM calibration.

Wehrli Custom Fab Intake Horn, 3.5in., for 17-19 Duramax L5P, Flat Black

MIA's Description

The Wehrli WCF100721-FB is a High Flow Cast Turbo Intake Horn designed for 2017-2026 L5P Duramax trucks. It replaces the restrictive OEM plastic turbo mouthpiece, increasing airflow to the turbocharger for improved engine performance and throttle response. This intake horn is constructed from CNC-machined cast aluminum and features a billet aluminum port for PCV connection. It is compatible with stock and OEM-style aftermarket turbochargers and works with both OEM and aftermarket cold air intake systems.

Fitment

Fitment Guaranteed

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Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandWehrli
Part NumberW005 WCF100721-FB

Videos

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Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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