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Air Intake Systems

Wehrli

High Flow Bundle Kit Stage 1 11-16 Duramax LML Deore Gold

$1,119.00 $1,085.43 Save $33.57

SKU: W005 100409-DG

In Stock
In Stock
Ships by Jun 9
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Non-Returnable Item

Description

This High Flow Intercooler Pipe Kit is a Stage 1 upgrade for the 2011-2016 LML Duramax engine. It improves airflow between the turbo and engine, leading to enhanced efficiency, throttle response, and turbo spool-up. The kit eliminates weak points in the factory design, which can cause boost leaks or complete failures in demanding applications.

It includes:
* A 3" High Flow Passenger Side Upper Crossover Intercooler Pipe, offering a 20% size increase over the OEM part. This pipe removes the resonator for an improved appearance and a more aggressive turbo and engine sound. It is designed for use with the OEM Y-Bridge and connects to the factory throttle valve and grid heater.
* A 3" High Flow Driver Side Intercooler Pipe, which replaces the factory two-piece 2.5" pipe with a high-flow, one-piece 3" pipe.
* A 3.5" High Flow Passenger Side Intercooler Pipe, replacing the factory plastic two-piece pipe with a high-flow, 14-gauge aluminum one-piece 3.5" pipe.

The kit also features upgraded silicone boots designed to withstand higher boost pressures than factory components, increasing reliability and eliminating blown factory boots and horsepower-robbing boost leaks. The pipes are available in various custom powder coat colors. It is recommended to pair this kit with emissions-compliant tuning and drop-in turbochargers for optimal performance gains.

Fitment

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Specifications

BrandWehrli
Part NumberW005 100409-DG

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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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