Wehrli Custom Fabrication WCF100301-SGS 4" Stage 2 Intake Kit with Air Box for 2004.5-2005 LLY Duramax - Sparkle Granny Smith

The Wehrli Custom Fabrication Stage 2 Intake Kit replaces the restrictive plastic factory air intake components on 2004.5-2005 LLY Duramax engines with a high-flow fabricated aluminum intake system for improved engine performance and sound. This complete kit features a 4-inch intake pipe with air box enclosure and dry filter assembly that 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.

Key Features:

• 4-inch intake pipe constructed from 14-gauge aluminum with smooth aerodynamic bends
• Air box and lid constructed from heavy-duty 10-gauge aluminum sheet metal
• High-flow 4.8-inch cast aluminum turbo intake horn (largest on the market)
• CNC machined cast aluminum construction with integrated PCV port
• Eliminates factory resonator for improved appearance and more aggressive turbo sound
• Fully compatible with OEM and upgraded drop-in VGT style turbochargers
• Includes dry air filter with Outerwear's hydrophobic pre-filter cover
• Removable air box lid for easy filter inspection and maintenance
• Complete installation hardware with silicone reducer boot, stainless steel T-bolt clamps, and O-ring seals
• Custom powder coat finish in Sparkle Granny Smith color
• Installs easily with basic hand tools
• Made in USA

This Stage 2 intake system removes restrictions in the OEM setup to improve turbo spool and top end power while providing enhanced air velocity and volume. The all-aluminum construction ensures durability, while the included quality hardware provides optimum reliability and ease of installation. Finished in Wehrli Custom Fabrication's signature Sparkle Granny Smith powder coat for a distinctive custom appearance.