Mugen Motorsports (M-TEC Co., Ltd) () is a Japanese company. It was formed in 1973 by Hirotoshi Honda and Masao Kimura. Hirotoshi Honda is the son of Honda Motor Company founder Soichiro Honda. Mugen is an engine tuner (performance improvement) and parts builder. They are closely linked with Honda. Mugen has never been owned by Honda. Mugen means "Without Limit", or "Unlimited". It is common to placed word "Power" after Mugen to say "Unlimited Power". 