Full Cold Air Intake Kits

Maximize airflow, lower exhaust gas temperatures (EGTs), and significantly improve throttle response on your 2006–2007 Chevy Silverado or GMC Sierra 2500HD/3500HD with our selection of LBZ Duramax complete cold air intake kits. While the 6.6L LBZ is a highly capable engine from the factory, the OEM airbox and corrugated intake tubing can become a severe bottleneck when you install aggressive tuning, upgrade your turbocharger, or tow heavy loads up steep grades. A complete cold air intake system solves this by entirely replacing the restrictive factory components with large-diameter, smooth-flowing intake pipes and a high-capacity filter housed in a precision-engineered, heat-shielded airbox. By drawing in a much higher volume of dense, cold air directly from outside the engine bay, these bolt-on kits unlock hidden horsepower, improve overall engine efficiency, and amplify your turbo whistle. We supply full cold air intake systems featuring your choice of low-maintenance dry disposable or reusable oiled filters from trusted industry-leading manufacturers like S&B Filters, aFe Power, Banks Power, and HSP Diesel. Browse our complete inventory of 6.6L LBZ full cold air intake kits below to let your engine breathe freely and achieve maximum performance.