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Mugen

Car culture term

Mugen
Photo: Calreyn88 / Wikimedia Commons · CC BY-SA 4.0

What is Mugen?

Honda factory tuning house and racing arm. Founded 1973 by Hirotoshi Honda (son of Soichiro Honda). Famous for Civic Type R Mugen, NSX-R, and racing engines.

Mugen (無限, "without limit") is a Japanese tuning house and racing partner for Honda, founded in 1973 by Hirotoshi Honda (son of Soichiro Honda, the founder of Honda Motor Company). Although Mugen is technically independent of Honda, the tight personal and engineering relationships between the two companies have made Mugen the de facto factory tuning arm for many Honda performance products.

Mugen has produced parts and complete vehicles across decades of Honda models. Iconic Mugen products include the Civic Type R Mugen RR (a 240 horsepower limited edition Civic), the NSX-R Mugen, the Mugen Civic Type Euro Edition (FN2 Mugen), and various racing engines used in Formula 3, Formula 1, and various touring car series. Mugen Civic Si and Type R parts (lip kits, exhausts, wheels) are particularly desirable in tuner culture.

Mugen is also a successful racing operation. The company won multiple Formula 3 championships, supplied engines to Lotus and Tyrrell in Formula 1, and operates extensive testing programs. Mugen-tuned engines have powered numerous racing victories. The brand commands respect in the Honda enthusiast community comparable to AMG within the Mercedes-Benz community.

Related terms

Spoon SportsOEM-plus

Frequently asked questions

Is Mugen really independent of Honda?
Officially yes; Mugen is a separate company (M-Tec). In practice, the relationship is tight: Mugen was founded by Hirotoshi Honda (son of Soichiro Honda), uses Honda factory technology and engineers, and operates with Honda blessing. Mugen products are essentially Honda factory performance products, especially in the Type R era.
How much does a Mugen Civic Type R cost?
The 2007 Civic Type R Mugen RR (limited to 300 units globally) sold new for around $35,000 USD equivalent. Today, clean low-mile examples sell for $80,000-$150,000+. The RR was a global homologation special with a 240 horsepower K20A2 and significant chassis modifications.
What is the difference between Mugen and Spoon Sports?
Both are Japanese Honda tuner houses but with different identities. Mugen is the factory-affiliated tuning house, working closely with Honda engineering. Spoon Sports is a more independent racing-focused tuner founded by Tatsuru Ichishima. Both are highly respected; Mugen has more Honda factory backing while Spoon has more grassroots racing emphasis.
Are Mugen parts considered OEM?
Generally yes within the OEM-plus framework. Mugen parts are factory-engineered Honda performance parts. They are widely accepted as OEM-plus modifications because of the company tight Honda connection and engineering quality. The status is similar to BMW M parts on a base BMW; the parts are factory-correct upgrades.
Where can I buy Mugen parts in the US?
Some Mugen parts are sold through specialty Honda performance retailers and online stores. Many Mugen products are JDM-only and require import. Mugen Civic Type R parts (lip kits, exhausts, wheels) are increasingly available in the US through grey-market dealers as the Type R lineage has grown in global popularity.
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