JMS Performance is committed to building custom racing components and engine modifications of the highest level. JMS builds a limited amount of engine kits each year; this allows JMS to custom tailor engine modifications and components to your application and riding style. JMS will often build custom components and prototype parts for customers for testing. Some parts may become exclusive to a customer. If you are willing to test JMS is ready and willing to develop the components you need.

JMS PERFORMANCE

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HORSEPOWER NOT HYPE

ENGINE KITS

CUSTOM CNC MACHINING.

COMBUSTION ANALYSIS DYNO TUNING

DATA ACQUISITION,
SUSPENSION