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Wehrli

Wehrli 04.5-05 Duramax LLY 4in Stage 2 Intake Kit - Fine Texture Black

$825.00 $800.25 Save $24.75

SKU: W005 WCF100301-FTB

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Special Order
Ships in 4–6 weeks
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The Wehrli Custom Fabrication 4" Intake Kit with Air Box Stage 2 replaces restrictive factory air intake components to improve engine performance. This kit is designed to increase airflow, horsepower, and torque, while also providing quicker throttle response and cooler intake temperatures. It features 4" diameter 14-gauge aluminum piping and a 10-gauge aluminum air box with a removable lid. The kit includes the largest intake horn on the market (4.8" inlet with PCV port) and eliminates the resonator connection.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

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 WCF100301-FTB

Videos

WCFAB Stage 2 Intake Kit Full Install *Duramax LMM/LBZ*

WCFAB Stage 2 Intake Kit Full Install *Duramax LMM/LBZ*
WCFAB DURAMAX 4\" INTAKE INSTALL!

WCFAB DURAMAX 4\" INTAKE INSTALL!

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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