Cold Air Intake Bundle with VGT Intake Mouthpiece

The HSP Cold Air Intake Bundle is designed to be the first step toward improving airflow and performance for your 2004.5-2007 Chevrolet or GMC Duramax truck. This bundle integrates a Cold Air Intake and a VGT Intake Mouthpiece, replacing restrictive factory components to unlock your engine's potential and provide a noticeable increase in power and engine response. The Cold Air Intake itself is constructed from hand-fabricated, high-grade metal, featuring a 4.5-inch mandrel-bent intake tube engineered to reduce turbulence and enhance airflow. It includes a heat shield box that insulates the system from underhood heat, ensuring cooler and denser air is delivered to the turbo, which translates to more power and better overall engine performance. On the dyno, this intake has demonstrated gains of up to 20 HP and 58 lb-ft of torque. This component utilizes a high-strength O-ring seal at the turbo inlet to prevent leaks and maximize efficiency, further optimizing throttle response and turbo spool-up. The entire kit is designed as a direct-fit bolt-on upgrade and comes with all necessary hardware, boots, and clamps for installation. Special considerations apply for specific models. The PCV system can be rerouted and the resonator box removed, though the PCV reroute kit is sold separately. Crucially, when used on LLY-equipped Duramax trucks (2004.5-2005, VIN Code 2), the MAF sensor must be rescaled via tuning for proper operation. LBZ models (2006-2007, VIN Code 2 or D) typically do not require tuning for installation. This intake is suitable for daily driving, towing, and performance builds, improving airflow without sacrificing drivability. The product is backed by HSP's Limited Lifetime Warranty.