About this product
A fabricated aluminum 4 inch intake pipe and air box with a dry filter for the 2011 to 2016 LML Duramax, replacing the restrictive plastic factory parts.
- Part number: WCF100304
- Questions on fitment? Call our shop at 865 640 2097 and talk to a tech who works on these trucks every day.
Full product details
Wehrli Model WCF100304
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. The new design significantly increases airflow 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 boots, 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.
Includes High Flow 4.8 in. Cast Aluminum Turbo Intake Horn removes restrictions in the OEM setup to improve turbo spool and top-end power and eliminates factory resonators for improved appearance and more aggressive turbo sound. This High Flow 4.8 in. horn is fully compatible with OEM and upgraded drop-in VGT style turbochargers.
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: 23467660, 20917396, 15819728, 25881207, 20847795, 23210121, 22870902
Air box is NOT compatible with intake pipe from kits WCF100337, WCF100689, or WCF100691.
***Not compatible with aftermarket LML Y-bridges that change the manifold/bridge inlet from the original factory (driver side inlet) location***
***NOTE: 2011 MODEL YEAR TRUCKS MUST UPDATE PCV Regulating Valve to 2012-2016 model year spec to allow correct fitment and compatibility with this part***
Description supplied by Powerhouse Diesel through its current Shopify listing. Product, performance, and health claims are the seller’s and have not been independently verified by StorkScout.
