Home - Shop Products - Duramax - 2017-2021 L5P - Intakes & Intake Horns

2017-2019 L5P Duramax 4" Intake Kit with Air Box

-4" Intake Pipe
-Air Box with Lid
-Dry Air Filter
-Outerwear's Pre-Filter Cover
-Seal for Connection to Ram Air Port on Hood
-High Quality Silicone Boot
-Stainless Steel T-bolt Clamps
-Powder coating
-Installs easily with basic hand tools.
-No Tuning Required, Bolt On!
-Compatible with stock trucks. No other modifications or upgrades necessary!
-Made in USA
Shipping: This Product cannot ship to the state of California
Pricing: $539.00

Customize Your Item

- Model Year -
 * required
- Powder Coating -
 * required


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 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. The critical ram air duct seal has been moved to the bottom of the hood for a clean engine compartment appearance. Full assembly finished in your choice of WCFab's signature custom powder coat colors for a look as unique as your truck.

-Installs easily with basic hand tools.

-NO Tuning required, bolt on!

-Will fit on stock truck no other modifications or upgrades necessary!

***Not compatible with WCFab Intake Resonator Pipe WCF100709***


Shipping Information

  • Item Requires Shipping
  • 17.0 lbs.
  • W14.0000” x H14.0000” x L24.0000”
  • This Product cannot ship to the state of California

Customer Reviews

Comment Total Reviews (1)

  • Currently 5/5 Stars

Reviewed by: Jeffrey12/15/2020 11:34PM

Product ownership: Less than 1 week

Purchased from: Wehrli Custom Fabrication - WCFab

First purchase from WC Fab. More to come now. Easy to install, great powder coat, adds sound to the turbo. Glad I bought it. Would recommend.

You must login to post a review.