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The Perfect Wehrli 01-04 Chevrolet Duramax Lb7 4in Intake Kit In Multiple Colors [TsAE4qat]

$69.99 $223.99 -69%

Wehrli Model WCF100190WCFab 2001-2004 GM LB7 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 impr

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Wehrli Model WCF100190

WCFab 2001-2004 GM LB7 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 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 element allows 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.

Full assembly finished in your choice of WCFab's signature custom powder coat colors for a look as unique as your truck.

Replaces the following GM part numbers: 19201277, 25345138, 21993711, 15076901

What Our Customers Say

December 27, 2025

Absolutely no complaints!

It's the perfect tool for the job. Couldn't ask for more.

- Charlie X..

December 27, 2025

Absolutely no complaints!

I'm blown away by the quality. Did not expect it to be this good.

- Eliana K..

December 27, 2025

Absolutely no complaints!

The performance is excellent and the product is very well-made.

- Megan P..

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