Fidanza Performance is a US based designer and manufacturer of the highest quality lightweight aluminum flywheels high-performance clutches and precision adjustable cam gears in the world. From vintage European to Asian imports and modern muscle cars we deliver performance and reliability you can count on. Built in the USA to uncompromising manufacturing standards and using the highest quality raw materials Fidanza Performance products are the world standard in form and function. Aluminum flywheels Fidanza Performance lightweight aluminum flywheels free up extra horsepower and give you faster throttle response quicker acceleration better vehicle slowing and smoother quicker shifting. So whether for everyday street use autocross time-attack drift or anywhere else you need fast transitional.