Fits: 2006 thru 2007 Chevy Silverado/GMC Sierra 2500HD/3500HD LBZ Duramax Diesel

Replace the restrictive plastic factory air intake parts for improved engine performance with the Wehrli Custom Fabrication Stage 2 Intake Kit which includes WCF100192 and WCF100412. This 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.

Features:

• 4" diameter piping, 14ga. aluminum
  
• 10ga. Aluminum construction air box
  
• Removable air box lid for ease of maintenance
• Largest intake horn on the market
• Eliminates resonator connection
• Installs easily with basic hand tools
• Compatible with OEM VGT style turbocharger
• Made in the USA

Includes:

• 4" Intake pipe
• Air box with lid
  
• 4.8" Inlet aluminum intake horn w/PCV port
  
• Dry air filter
• Silicone reducer boot
  
• Stainless Steel T-Bolt clamps
• Outerwears pre-filter cover
• Installation hardware
• Custom color powder coat POWDERCOAT COLOR CHART

​Notes: 

• 15+ Business Days Before Shipment, this is a custom order part, once the order has been processed it CANNOT be canceled, returned, or refunded
• If you enter a powdercoat color that is not listed on the chart, your order will be delayed as we will have to contact you to discuss the options. RAW Finish is NOT available!

Replaces Part #:

• WCF100638
  
• GM 19167951
• GM 89060671
• GM15837090
• GM 25839609
• GM 98011738

*NOT LEGAL FOR SALE OR USE IN CALIFORNIA. THE MANUFACTURE, SALE, OFFER FOR SALE, OR INSTALLATION OF THIS PRODUCT MAY ALSO BE ILLEGAL NATIONWIDE UNDER THE FEDERAL CLEAN AIR ACT (42 U.S.C. § 7522(A)(3))*

*This product is ONLY designed for closed course racing where it is legal to do so. Any other use will be in violation of local, state, and federal laws. We are not responsible for unlawful use of this product.*