Kong Performance Stage X Port Add-On

Kong Stage X Supercharger Port Upgrade

Stage X is Kong Performance’s supplemental CNC machining package for eligible factory-supercharger porting services. It builds on the standard Kong CNC port rather than replacing it and is intended for customers seeking the maximum practical airflow from a supported OEM supercharger platform.

The additional machining strategy is based on airflow simulation, chassis-dyno development, and track testing. Platform-specific results vary, but Kong reports meaningful additional airflow and power potential on combinations equipped with the fuel system, pulley ratio, throttle body, intake, exhaust, engine hardware, and calibration required to use it.

Ordering requirements

• This is an add-on only—not a standalone porting service.
• An eligible Kong base supercharger-porting service must be purchased on the same order.
• Application compatibility must be confirmed before the supercharger is shipped.
• The submitted supercharger must be suitable for the additional machining.

Important: Stage X does not guarantee a specific horsepower result. Final output depends on the complete vehicle and engine combination. Contact SMG before ordering if you are unsure whether Stage X is appropriate for your target power level or supercharger.

Purchase with an eligible base service

This upgrade must be purchased with a compatible Kong porting service, including the Kong LT4 CNC Porting Service when applicable. It does not create an additional shipping charge. Orders placed without an eligible base service will be held while SMG confirms the correct service package and collects any required difference before work begins.