Industrial Injection 03-07 5.9 Cummins S300 SX-E Single Turbo Kit 64/68 With 1.0 A/R

The 64mm compressor wheel and 68mm turbine wheel in this Industrial Injection S300 SX-E turbo kit are designed to offer a significant airflow improvement over the stock turbo for your 2003-2007 5.9L Cummins. This setup uses a 1.0 A/R turbine housing, which helps to spool the turbo faster and improve low-end response, making it a popular choice for those looking to enhance their truck's performance without sacrificing too much drivability.

Industrial Injection has put together a comprehensive kit here, aiming to make the installation as straightforward as possible for a turbo upgrade. It includes the necessary components to get the S300 SX-E turbo properly mounted and plumbed into your 5.9 Cummins engine. This means you're getting a well-built turbocharger paired with the supporting hardware needed for a complete system. The larger wheels and the specific A/R ratio on the housing are key to unlocking more power and torque, especially when you start pushing the engine beyond its factory limits.

When considering a turbo upgrade of this caliber, it's important to note that other supporting modifications might be beneficial to fully take advantage of the increased airflow and power. This kit is a substantial upgrade for your 5.9 Cummins, offering a noticeable change in how your truck performs, particularly under load and during acceleration. Remember, this kit is not CARB approved and cannot be shipped to California.