Upgrade your 2006–2007 LBZ Duramax with the HSP Cold Air Intake (302-HSP), engineered to increase airflow, improve throttle response, and deliver noticeable performance gains. This intake replaces the restrictive factory air system with a high-flow 4” mandrel-bent intake tube designed to maximize air delivery to the turbo for improved horsepower and torque.
The system features a custom heat shield air box that helps block hot engine bay air while drawing in cooler, denser air from outside the engine compartment. This improves combustion efficiency, reduces intake temperatures, and helps maintain consistent performance under load. The sealed design also ensures a direct and efficient airflow path while protecting the filter from contaminants.
Built with high-strength silicone couplers, CNC-machined sensor provisions, and heavy-duty aluminum construction, this intake is designed for long-term durability and reliable performance in both daily driving and towing applications.
Key Features:
- 4” mandrel-bent intake tube for increased airflow
- Custom heat shield air box for reduced intake temperatures
- Improves horsepower, torque, and throttle response
- Draws in cooler outside air for better combustion efficiency
- High-flow air filter for improved performance and filtration
- Durable construction with reinforced silicone couplers
- CNC-machined sensor mounts for precise fitment
- Direct bolt-on installation with no major modifications required
The HSP Cold Air Intake (302-HSP) is a proven upgrade for LBZ Duramax owners looking for improved airflow, stronger performance, and a clean, performance-driven under-hood setup.