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Wehrli

High Flow Bundle Kit Stage 3 for 2017-2019 Duramax L5P Fluorescent Green

$1,870.00 $1,813.90 Save $56.10

SKU: W005 100403-FG

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

Moderate — 2–4 hours

Description

Wehrli Custom Fabrication's Stage 3 High Flow Intake Bundle Kit (WCF100441 + WCF100129) increases airflow for improved efficiency, throttle response, and turbo spool-up in L5P Duramax engines. It eliminates factory weak points and is emissions compliant. The kit includes a 4" turbo inlet, 3" driver-side and 3.5" passenger-side intercooler pipes made from 14ga. aluminum, a 3.5" DOC back downpipe, and a 3.5" intake horn. It retains factory connections and sensors, requires no tuning, and is made in the USA.

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-FG

Videos

WCFab 2017 - 2019 L5P Duramax Stage 3 High Flow Intake Bundle Kit

WCFab 2017 - 2019 L5P Duramax Stage 3 High Flow Intake Bundle Kit
Wehrli Fab 3.5 Inch Intake Horn install! 2017-2019 2500/3500 Duramax L5P!

Wehrli Fab 3.5 Inch Intake Horn install! 2017-2019 2500/3500 Duramax L5P!
Wehrli Fab 4 Inch Intake Full Install! 2017-2019 Duramax L5P!

Wehrli Fab 4 Inch Intake Full Install! 2017-2019 Duramax L5P!
Wehrli Fab 3 Inch Driver Intercooler Pipe Full Install! Fits 2017-2019 Duramax L5P!

Wehrli Fab 3 Inch Driver Intercooler Pipe Full Install! Fits 2017-2019 Duramax L5P!
WCFab 2017 - 2025 L5P Duramax 3.5" Down Pipe

WCFab 2017 - 2025 L5P Duramax 3.5" Down Pipe
WCFab 3.5 Inch Passenger Side Intercooler Pipe Install. 2017-2019 2500/3500 L5P Duramax!!

WCFab 3.5 Inch Passenger Side Intercooler Pipe Install. 2017-2019 2500/3500 L5P Duramax!!
Full Wehrli L5P Piping Kit Install!

Full Wehrli L5P Piping Kit Install!
WHICH INTAKE IS RIGHT FOR YOUR L5P?!

WHICH INTAKE IS RIGHT FOR YOUR L5P?!
Wehrli Fab Upper Coolant Pipe Install! 2017-2019 Duramax L5P!!

Wehrli Fab Upper Coolant Pipe Install! 2017-2019 Duramax L5P!!
L5P DURMAX BOLT ON POWER!

L5P DURMAX BOLT ON POWER!

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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