Wehrli Custom Fab Stage 2 4in Intake Kit for Select 2011-2016 Chevrolet/GMC (6.6L) Gloss Black - WCF100304-GB

Fits select 2011-2016 Chevrolet Silverado and GMC Sierra 2500 HD / 3500 HD (6.6L Duramax LML).

Upgrade your Duramax airflow with the Wehrli Custom Fab (WCFab) Stage 2 Intake Kit. This system replaces the restrictive plastic factory intake with a high-flow, fabricated aluminum 4-inch intake pipe and a dedicated air box enclosure. By drawing cool air from the inner fender, this kit reduces intake temperatures and improves throttle response. A key component of the Stage 2 kit is the included 4.8-inch cast aluminum turbo intake horn, which eliminates the factory resonator and removes intake restrictions to improve turbo spool and top-end power.

The included dry air filter features a hydrophobic Outerwear's pre-filter cover to protect your MAF sensor and turbo from contaminants. Finished in a durable Gloss Black powder coat, this bolt-on kit requires no ECU tuning for operation. Note: 2011 model year trucks must update to a 2012-2016 spec PCV Regulating Valve for correct fitment.

• 4-inch fabricated aluminum intake pipe with smooth aerodynamic bends
• 4.8-inch high-flow cast aluminum turbo intake horn (VGT compatible)
• Enclosed air box with removable lid for easy maintenance
• Dry air filter with hydrophobic pre-filter cover
• Heavy-duty silicone boot and stainless steel T-bolt clamps
• Includes turbo O-ring seal, EGR gaskets, and installation hardware
• No tuning required; direct bolt-on installation
• Gloss Black powder coat finish
• Manufacturer Part Number: WCF100304-GB
• Made in the USA