High Flow Bundle Intake Kit Stage 2 01-04 Duramax LB7 Fluorescent Orange

The Wehrli Custom Fabrication (WCFab) Stage 2 High Flow Intake Bundle Kit (MPN: 100435-FO) is a comprehensive performance upgrade for 2001-2004 GMC and Chevrolet 2500HD and 3500HD trucks with the 6.6L LB7 Duramax diesel engine. This kit replaces restrictive OEM plastic components with precision-engineered aluminum parts to significantly enhance engine performance. The Stage 2 kit includes a 4-inch high-flow aluminum intake pipe, a fabricated Y-Bridge, and intercooler pipes. These components feature smooth, aerodynamic bends to optimize airflow velocity and volume, resulting in improved horsepower, torque, quicker throttle response, and cooler intake temperatures. The kit also produces a more aggressive engine and turbo sound during acceleration. Included in the bundle are a dry filter assembly and an air box with a removable lid for easy inspection and maintenance. A hydrophobic pre-filter cover is also provided to help keep the MAF sensor, turbo, and engine airways free of contaminants. High-quality hardware, silicone boots, stainless steel T-bolt clamps, a MAP Sensor Seal, and a Hold Down Bracket ensure optimum durability and ease of installation. An FPRV Block Off Kit is also included for enhanced clearance. The kit features all-aluminum construction and is available in various custom powder-coated finishes, including Gloss White, to match the truck's aesthetics.