Industrial Injection Cummins 03-07 5.9L Quick Spool Compound Turbo Kit

This kit includes the Industrial Injection Quick Spool Compound Turbo Kit for your 2003-2007 Cummins 5.9L engine. Compound turbo systems use two turbochargers working together to improve airflow and boost response across the entire RPM range. The smaller, high-pressure turbo spools up quickly to reduce lag, while the larger, low-pressure turbo provides boost at higher engine speeds. This setup is designed to help your engine breathe more freely, leading to improved performance and power output.

Industrial Injection has put together a well-built compound turbo system designed for those looking to significantly upgrade their Cummins' breathing capabilities. The kit is engineered to work as a complete package, ensuring the two turbos complement each other for optimal efficiency. This means you get a more responsive feel from lower RPMs compared to a single large turbo, without sacrificing top-end power. The focus here is on creating a robust system that can handle increased demands, making it a solid choice for serious Cummins owners.

When installing a compound turbo system, it's important to consider supporting modifications that can help your engine take full advantage of the increased airflow and boost. This kit is a major upgrade for your 5.9L Cummins, and it's recommended to consult with a professional or refer to detailed installation guides to ensure proper setup and integration with your existing engine components. Please note that this kit is not CARB approved and cannot be shipped to California.