Wehrli Custom Fabrication WCF100504-BG Stage High Flow Intake Bundle Kit LMM Duramax - 3 2007.5-2010

The Wehrli Custom Fabrication Stage 3 High Flow Intake Bundle Kit is a comprehensive performance upgrade designed for 2007.5-2010 Chevrolet Silverado and GMC Sierra 2500/3500 HD trucks equipped with the 6.6L LMM Duramax diesel engine. This complete package combines the popular Stage 2 High Flow Bundle with a 3-inch stainless steel down pipe, delivering increased air and exhaust flow for improved turbo efficiency, throttle response, and spool-up characteristics.

Key Features:

• 4-inch aluminum intake pipe with enclosed air box, dry filter assembly, and Outerwears pre-filter cover for maximum airflow and filtration
• 4.8-inch intake horn with PCV port - largest on the market providing 20% airflow improvement over stock
• 3-inch hot side (driver) intercooler pipe and 3.5-inch cold side (passenger) intercooler pipe made from 14-gauge mandrel-bent aluminum
• 3-inch stainless steel down pipe for improved exhaust flow
• 14-gauge aluminum construction throughout for durability and weight savings
• Air box constructed from 10-gauge aluminum sheet with removable lid for easy filter maintenance
• Includes all necessary installation hardware, high-quality silicone boots, seals, and stainless steel T-bolt clamps
• Powder-coated finish for corrosion resistance and professional appearance

This kit eliminates restrictive factory plastic components and weak points in the OEM design that contribute to lost power, boost leaks, and potential failures in hard-working and high-performance applications. By replacing the restrictive 2.5-inch factory pipes and plastic intake components, this Stage 3 bundle significantly increases airflow to the turbo, producing improved horsepower and torque while reducing intake air temperatures by drawing cold air through the inner fender. The system also provides a more aggressive engine and turbo sound during acceleration.

Note: This product cannot ship to the state of California. Typical lead time is 10-15 business days due to custom powder coating options.