Wehrli 100302 4 inch Cold Air Intake Kit with Air Box and Intake Horn | 2006-2007 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LBZ

Features: - 4" Intake Pipe - 14g Aluminum Construction - Air Box with Lid - Dry Air Filter - Outerwear's Pre-Filter Cover - Includes Installation Hardware - 4.8 in. Inlet Aluminum Intake Horn - Largest Intake Horn on the market - CNC Machined Cast Aluminum Construction - Includes PCV Port - Eliminates Resonator Connection - Silicone Reducer Boot - Stainless Steel T-Bolt Clamps - O-Ring Seal - Custom Powder Coat Finish - Installs Easily with Basic Hand tools - Made in USA Let Your Duramax Breathe for Superior Performance Replace the restictive factory parts that choke your 2006-2007 GM 6.6L Duramax with Wehrli's 4-inch Cold Air Intake Kit. This high flow, fabricated aluminum intake pipe includes air box enclosure with dry filter assembly. This new and improved design dramatically increases airflow to your turbo, delivering noticeable gains in horsepower, torque, and throttle response while lowering intake temperatures. By drawing cool, fresh air through the inner fender, this intake system ensures your engine receives the most efficient airflow possible, resulting in a cooler, more powerful engine that can perform at its best. Whether you're looking for more power, quicker throttle response, or simply an upgrade to improve your truck's overall efficiency and sound, this high-flow aluminum intake system from Wehrli provides the ultimate solution. Built to Last Constructed entirely from durable, high-quality aluminum, this intake system features large 4" diameter piping with smooth, aerodynamic bends. These carefully engineered bends optimize intake air velocity and volume, allowing for smoother airflow that enhances turbo spool-up and boosts engine performance across the RPM range. The included air box features a removable lid for easy visual inspection and maintenance of your WCFab filter with included hydrophobic pre-filter cover, to help keep your MAF sensor, turbo, and engine airways contaminant-free. This system also includes a 4.8 in. Cast Aluminum Turbo Intake Horn which removes restrictions in the OEM setup to improve turbo spool and top end power. Built with high-quality hardware, including a robust silicone boot, dependable seals, and corrosion-resistant stainless steel T-bolt clamps, this intake system is as durable as it is effective. The full assembly is finished in your choice of WCFab's custom powder coat colors, giving you a unique, eye-catching look that complements your truck's individual style. Vehicle Fitment: 2006, 2007 GM 2500/3500HD 6.6L Duramax Application Notes: - Supercedes WCF100638 - Replaces the following GM Part Numbers: 19167951, 89060671, 15837090, 25839609, 98011738