Mugen Motorsports

The company has a strong racing heritage, as Hirotoshi Honda began building his own racing car in a workshop at his father's house, shortly before he graduated from Nihon University in 1965. Masao Kimura is a veteran racer with more than 50 victories in Honda sports cars and single-seaters and worked for Honda R&D and then Honda Racing Service before helping Hirotoshi Honda establish Mugen.

In 1973, Mugen started its operations and initially offered special parts of motocross bikes. As Honda expanded its vehicle lineup, Mugen's product range also expanded. The company started specializing in tuning Honda engines. Beginning with the 1200cc Honda Civic engine, it went on to develop, and now designs and builds, both two-stroke and four-stroke engines, manufacturing many of the major components itself.

Mugen ultimately intends to build its own road cars and the first step towards this was the creation of bodykits for the Honda Ballade CR-X in 1984. Since then, the company has produced a number of body kits for Honda machinery, culminating with the Mugen NSX prototype in 1992.

Following Hirotoshi Honda's tax evasion allegation in late 2003, Mugen was restructured in early 2004 with the establishment of M-TEC. The new company retained the right to use the Mugen trademark and its headquarters in Asaka, Saitama, in the northern suburbs of Tokyo close to the Honda R&D facility at Wako. Although it is a legally separate entity, M-TEC kept Mugen's existing staff and is headed by former Mugen board member Shin Nagaosa, who was the engineering division manager at Mugen and been involved with running Mugen's NSX racing program.

M-Tec has also built concept Honda vehicles, using the company's own performance parts. Some models (e.g.: Mugen Civic RR) are also sold in Japanese domestic market.

Mugen also sells individual parts for newer vehicles that includes the 2017-2021 Civic Type-R (FK8), as well as 2016-2021 Civic Hatchback (FK7). These parts include aerodynamic body parts such as front lips, rear diffusers, and wings. This also goes for earlier gen vehicles, and is typically well known to be sought as an OEM aftermarket purchases for countries such as the U.S that do not receive Mugen produced vehicles like in Japan.

List of Mugen vehicles

Honda Stepwgn

Honda City Turbo I and II