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Wehrli 4in Stage 2 Duramax LML Intake Kit | Chevrolet Silverado (11-16) (WCF100304-BR)

Wehrli 4in Stage 2 Duramax LML Intake Kit | Chevrolet Silverado (11-16) (WCF100304-BR)

WCF100304-BR

In stock

$839.05 USD
$865.00 USD $839.05 USD
Special Discounts May Apply at Checkout Sold out

The Wehrli Stage 2 4-inch Intake Kit is a high-flow intake upgrade for the 6.6L Duramax LML, replacing restrictive factory plastic components with a fabricated aluminum intake pipe, air box enclosure, and dry filter assembly. Its smooth-bend 4-inch piping is designed to increase airflow and velocity to the turbo, supporting improved horsepower and torque, quicker throttle response, and cooler intake temperatures by drawing cold air through the inner fender. The kit also includes a 4.8-inch cast-aluminum turbo intake horn that reduces restrictions, promotes turbo spool and top-end power, and removes the factory resonator for a more pronounced turbo sound. A removable air box lid, hydrophobic pre-filter cover, silicone boot, seals, and stainless-steel T-bolt clamps support convenient maintenance and durable installation. Finished in Bengal Red.

Designed for 2011–2016 trucks equipped with the 6.6L Duramax LML engine, this kit replaces the factory intake components and includes the air box, dry filter assembly, hydrophobic pre-filter cover, and high-flow 4.8-inch cast-aluminum turbo intake horn. The horn is compatible with OEM and upgraded drop-in VGT-style turbochargers. It is not compatible with aftermarket LML Y-bridges that relocate the manifold or bridge inlet from the original driver-side position. For 2011 model-year trucks, the PCV regulating valve must be updated to the 2012–2016 specification for correct fitment and compatibility. The source describes hardware and connections intended to support ease of installation but does not specify a particular installation method or use case.

Overview

WCFab 2011-2016 LML 6.6L Duramax Stage 2 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 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. - - Includes High Flow 4.8 in. Cast Aluminum Turbo Intake Horn which removes restrictions in the OEM setup to improve turbo spool and top end power and eliminates factory resonator for improved appearance and more aggresive 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. Not compatible with aftermarket LML Y-bridges that change the manifold / bridge inlet from 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.

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