Inno64 1:64 2008 Honda Civic Type-RR FD2 Mugden Experimental Spec

Mugen Motorsport, legally known as M-TEC Company, Ltd., is a Japanese company formed in 1973 by Hirotoshi Honda, the son of Honda Motor Company founder Soichiro Honda, and Masao Kimura. Mugen, meaning "without limit", "unlimited" or "vast", (hence the commonly placed word "power" after, denoting "unlimited power") is an engine tuner and parts manufacturer that manufactures OEM parts such as body kits and sports exhausts for Honda. Despite the family relationship, however, Mugen is not, and has never been, owned by Honda Motor Company; Mugen owner Hirotoshi Honda has been the biggest shareholder in Honda since his father's death in 1991.

The company tunes and races Honda vehicles in the Super GT championship, and, additionally, sells aftermarket parts to amateur enthusiasts. It was part of partnerships that won the Formula 3000 championship in 1990 and 1991, and that eventually led to Mugen's involvement in Formula One, from 1992 to 2000, and up to 2005 was the exclusive supplier of Formula Nippon engines.