Spoon Sports is a Japanese engine tuner and parts manufacturer specializing in cars made by Honda formed in 1988. The company logo of Spoon Sports is a play of words on Ichishima's name. Ichishima's first name is Tatsuru, and the Japanese name for crane is tsuru, hence the logo of a crane. "The company name Spoon comes from an impregnable fortress of a corner at Suzuka Circuit 20 years ago."

Mugen Motorsports (M-TEC Co., Ltd) (無限) 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", or "Unlimited", (hence the commonly placed word "Power" after, denoting "Unlimited Power") is an engine tuner and parts manufacturer closely associated with the Honda Motor Company

RWB/RAUH-Welt BEGRIFF is a Porsche tuner located in Japan. RWB has combined Japanese and Euro tuning elements, creating the distinct RWB style for Porsche chassis. Starting off as a small countryside body-shop in Chiba-Ken, RAUH-Welt 911’s are now a common sight on both the streets and racing circuits of Japan.

Legendary Japanese tuner Powerhouse Amuse has been immortalized by worldwide media features and an everlasting place in the Gran Turismo series of racing simulators, but their unceasing endeavor for high quality is what sets them apart. Beautiful track proven aero parts and premium titanium exhausts are a sample of what they have to offer

Studie is a Japanese tuning company of BMW and a Super GT racing team which participates in GT300 class. Studie was established in 1995 in Yokohama as a BMW parts dealer and developer. They currently have four branches in Japan. They also provide supports to teams and individuals using BMW cars in motorsports.

RE Amemiya Car Co Ltd is an automotive tuning company from Chiba Prefecture, Japan founded by Isami Amemiya. Amemiya has made a name for himself tuning rotary engines since 1974 and has become a pioneer in tuning rotary-powered Mazdas. Thirty years later, first on the street and later in the Super GT series, Amemiya has left its mark in the tuning and motorsports worlds for rotaries

Endless is a Japanese automotive brake company. They specialize in brake pads, and their pads are used extensively in Japanese automotive racing, from D1 drift competitions to JGTC grand touring. Endless owns a sister brand which it is often confused with, ZEAL, which sells non-brake parts, currently suspension and exhaust parts

As far as perpetual-projects go, nothing and nobody could ever touch Under Suzuki and his Scorch Racing S15. This is the epitome of a project car. Suzuki devotes ALL of his spare time to his car and when needed makes extra time to get stuff finished. This is what happens when you build a car for a true purpose; obsession unavoidably sets in

Since J's started the company in Osaka Japan, their specialty has always been tuning and developing the performance parts for Honda vehicles. They also actively host track events for our customers and participate in several race series. Their products and tuning menus are the fruit of the countless test and research on the actual race tracks and test courses