Rotary and other Mazda model tuning commpany

Although the Ohlins suspension is well known throughout the racing world, the Ohlins Suspension found in Japan comes through Carrozzeria which includes some exclusive performance lineups which are not even in abroad (not even Sweden!). Ohlins is world class, high quality and a very trusted brand! Ohlins Japan website

Developer of innovative product to improve car engine performance by increasing the performance of car ignition systems.

Premier maker of custom chassis stiffening and safety equipment. Their products can be found all over various competitive motor sport venues, including D1. Okuyama produces these parts under the name Carbing and Dash.

Ogura Racing Clutch is the most popular clutch maker around. Many vehicles from the street to the circuit trust ORC to get the power to the ground, they are even used in D1 extensively.

Origin, like D-Max has risen from a small company a few years ago into a huge sponsor of D1 cars and producer of extensive body kits and drift related parts. Because of their low cost and good looks, Origin has become one of more commonly seen aero/body kit brands seen among tuner cars rolling around the streets of japan

Longtime and legendary specialist machine shop since the times of the twincam L-head for the 510 and present day 6-Speed Sequential Transmission and RB30 engine kits. OS is well known for the highest quality in multiplate clutches, superlock LSD and