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Air and Fuel› Superchargers, Turbochargers and Components

Wehrli

High Flow Bundle Kit Stage 3 for 2017-2019 Duramax L5P Bengal Blue

$1,799.00 $1,745.03 Save $53.97

SKU: W005 100403-BB

In Stock
In Stock
Ships by Jun 9
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

This Stage 3 upgrade from Wehrli Custom Fabrication is designed for 2017-2019 Chevrolet Silverado and GMC Sierra 2500/3500 HD trucks equipped with the 6.6L L5P Duramax diesel engine. It combines a Stage 2 High Flow Bundle and a 3.5-inch Down Pipe to enhance air and exhaust flow for improved efficiency, throttle response, and turbo spool-up. The kit replaces restrictive factory plastic components with high-flow fabricated aluminum intake piping, an intake horn, and an air box enclosure with a dry filter assembly. This specific MPN (100403-BB) comes with a Bengal Blue powder coat finish.

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 100403-BB

Videos

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WCFab 2017 - 2019 L5P Duramax Stage 3 High Flow Intake Bundle Kit
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WCFab 2017 - 2025 L5P Duramax 3.5\" Down Pipe

WCFab 2017 - 2025 L5P Duramax 3.5\" Down Pipe

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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