Since 1996, HKS was in the aviation business. In that year, we developed the "A700E" which is OHV 4 valve flat-twin engine for Ultra-Light Plane. Our high and safe quality engine development skill in automobile made us to challenge in the airplane engine development.
As a total tuning company, we make a complete engine from electronic control device, supercharger, intake, to exhaust and etc.

*Engine Assembly is no longer available.
Please contact the following companies for maintenance and repair parts or other inquiries.