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Wehrli

Wehrli 17-19 Duramax L5P 4in. Stage 2 Intake Kit - Bengal Red

$839.00 $813.83 Save $25.17

SKU: W005 WCF100360-BR

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INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

Part #: WCF100360-BR

WCFab 2017-2019 GM L5P 6.6L Duramax 4" Intake Kit with Air Box. This high flow, fabricated aluminum intake pipe and air box enclosure with dry filter assembly replaces the restrictive plastic factory parts on your diesel for improved engine performance. All new design significantly increases air flow to your turbo producing improved horsepower and torque, quicker throttle response, and cooler intake temperatures by drawing cold air through the hood Ram Air duct and inner fender. All aluminum construction features large diameter 4" piping with smooth aerodynamic bends to improve intake air velocity, volume, and provide more aggressive engine and turbo sound during acceleration. High quality hardware, silicone boot, seals, and stainless steel t-bolt clamps ensure optimum durability and ease of installation. Removable air box lid elementallows for easy visual inspection and maintenance of your WCFab filter with included hydrophobic pre-filter cover, to help keep your MAF sensor, turbo, and engine airways contaminant free. The critical ram air duct seal has been moved to the bottom of the hood for a clean engine compartment appearance. The intake horn is over an inch larger than the OEM diameter and we experienced a 25HP Gain with our 3.5" Horn when used with a Max Effort Tune. Full assembly finished in your choice of WCFab's signature custom powder coat colors for a look as unique as your truck.

Wehrli Custom Fab Intake Kit Stage 2, 4in., for 2017-2019 Duramax L5P, Bengal Red

MIA's Description

Wehrli Custom Fab 4" Stage 2 Intake Kit with Air Box - Bengal Red (WCF100360-BR) replaces the restrictive factory intake system on your diesel to maximize airflow and efficiency. Designed with a larger 4" aluminum intake pipe and smooth mandrel bends, this kit improves air velocity to the turbo, supporting increases in horsepower, torque, and throttle response. The enclosed air box draws cold air through the inner fender to help maintain cooler intake temperatures while enhancing overall engine performance. This system includes a high-flow dry air filter with an Outerwears pre-filter cover to protect against dirt and debris, keeping your MAF sensor, turbo, and engine airways cleaner. A 4.8" CNC-machined cast aluminum turbo intake horn is included to remove OEM restrictions, eliminate the factory resonator, and provide compatibility with both stock and upgraded VGT-style turbochargers. High quality silicone boots, stainless steel t-bolt clamps, and premium hardware ensure long-lasting durability and simple installation. Finished in WCFab's signature Bengal Red custom powder coat, this intake kit combines performance gains with a unique, show-quality appearance under the hood.

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Specifications

BrandWehrli
Part NumberW005 WCF100360-BR

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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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