Tomei is one of Japan’s most respected engine-performance brands. Their slogan is "The Engine Specialist", and that fits the company well: Tomei is especially known for engine internals, camshafts, stroker kits, turbos, exhaust manifolds and titanium exhaust systems.

Tomei was founded in 1968 as Tomei Motor Inc. by Seiichi Suzuki, who was a tuner and Nissan works driver, together with other car enthusiasts. The company later became TOMEI POWERED, and its roots are strongly connected to Nissan racing engine development. Tomei says it started as a Nissan-type racing constructor, but later developed engines and parts for many different manufacturers.