Industrial Injection 03-07 5.9 Cummins S300 SX-E Single Turbo Kit 63/74 w/ 1.0 A/R

This Industrial Injection turbo kit uses a 63mm compressor wheel paired with a 74mm turbine wheel, featuring a 1.0 A/R housing. This specific combination is designed to offer a noticeable improvement in airflow and exhaust gas velocity for your 5.9 Cummins engine, commonly found in 2003-2007 model trucks. The larger turbine wheel and housing help to reduce exhaust backpressure, allowing the engine to breathe more freely, while the 63mm compressor wheel is sized to provide a significant boost in airflow without creating excessive lag.

Industrial Injection has put together this kit to provide a substantial upgrade over the stock turbocharger. The S300 SX-E series turbo is known for its robust construction and ability to handle increased boost levels. The 1.0 A/R turbine housing is a key component here, as it's chosen to optimize exhaust flow for this engine's typical operating range, helping to spool the turbo more effectively and maintain boost pressure at higher RPMs. This kit is intended for those looking to significantly increase the power output and performance of their 5.9 Cummins.

When installing this turbo kit, be aware that it is not CARB approved and cannot be shipped to California. It's recommended to consult the manufacturer's installation guide for specific details regarding fitment and any additional components that may be required for a complete installation on your 5.9 Cummins. This upgrade is a serious step towards enhancing your truck's performance capabilities.