The ON3 Performance GT45 Turbocharger is a proven high-performance solution for both diesel and gasoline applications where serious airflow and horsepower are required. Featuring a T4 turbine flange, 77mm compressor wheel, and 3.5" V-band outlet, this turbo has become a popular choice for builders looking for strong top-end power while maintaining respectable spool characteristics for its size.

This turbocharger has delivered excellent results in compound twin-turbo diesel setups, especially in Cummins applications paired with a factory charger. It has also gained popularity in the performance gas market, where V8 single turbo combinations benefit from its ability to support substantial horsepower while still offering solid drivability.

Whether you’re building a high-horsepower diesel setup or a large-frame single turbo V8 combination, the GT45 provides reliable airflow and proven performance for demanding applications.

Features & Benefits:

• Large-frame GT45 turbocharger
• T4 turbine flange
• 77mm compressor wheel
• 3.5" V-band outlet
• Excellent for high-horsepower diesel and gas applications
• Popular for compound turbo diesel combinations
• Strong top-end airflow with respectable spool response
• Great choice for single turbo V8 builds
• Designed for high-boost and high-power applications

Performance Potential:

• Supports 700+ RWHP in properly matched gasoline applications
• Proven in compound diesel setups producing 830+ HP / 1,520+ lb-ft torque (application dependent)

The ON3 GT45 is a solid option for builders needing a durable, high-flow turbocharger capable of supporting serious power in both street and race applications.