Wehrli Custom Fabrication WCF100301-SC Stage Intake Kit with Air Box LLY Duramax - 4 2

The Wehrli Custom Fabrication Stage 2 Intake Kit delivers maximum airflow and performance for 2004.5-2005 LLY Duramax diesel engines. This high-flow fabricated aluminum intake system replaces restrictive plastic factory components to significantly increase 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.

Key Features:

• 4" intake pipe constructed from 14-gauge aluminum with smooth aerodynamic bends
• Air box and lid constructed from heavy-duty 10-gauge aluminum sheet
• High-flow 4.8" cast aluminum turbo intake horn - largest on the market
• CNC machined cast aluminum construction with integrated PCV port
• Dry air filter with Outerwear's hydrophobic pre-filter cover included
• Eliminates factory resonator for improved appearance and more aggressive turbo sound
• Silicone reducer boot with stainless steel T-bolt clamps and O-ring seals
• Complete installation hardware included
• Custom Sparkle Copper powder coat finish
• Made in USA

This Stage 2 kit is fully compatible with OEM and upgraded drop-in VGT style turbochargers. The removable air box lid allows for easy visual inspection and maintenance of the filter element. All aluminum construction ensures durability while maintaining optimal air velocity and volume. Installs easily with basic hand tools.