OS Giken

A famed machine shop since the times when the 510 Bluebird twincam L-head engine was a popular tuning base. Unlike its main racing clutch competition, Ogura Clutch (ORC) which manufactures clutches for a wide array of cars and other applications, OS Giken was established solely for producing tuning parts.

Since the early days of the company, OS Giken has been making new a innovative parts time and again, making them a commonly talked about in the tuning community. First they grabbed the attention of the public with their DOHC 4 Valve TC16-MAII/TC24-B1 engine in 1975. Then again in 2000 with the RB30 OS-E2996 Engine. Innovation from OS Giken came again two years later with the release of the RB26 Sequential Transmission, and the Super Lock LSD came the following year.

OS Giken continues to excel at bringing the tuning industry new and innovative products and will definitely continue to deliver high quality products for years to come.

Check'em Out: OS Giken

ORC Ogura Racing Clutch

Established in 1938, Ogura Clutch manufactures a variety of clutches not limited to cars for a variety of applications. They own 1/3 of the market in car air conditioning systems and have corporate offices all around the world.

Ogura Racing Clutch is arguably the most popular aftermarket 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.

From 1998 to 2006, ORC's campaign in the JGTC resulted in a total of six series championships further proving to competitors and skeptics alike that the ORC brand was not a low quality product.

Today, ORC has a variety of clutches available for anything from a street tuned miata, to the 1000hp drag supra. ORC has also started production of Brake kits and has started to expand into engine tuning with their new Supercharger lineup.

Check'em Out:ORC Ogura Racing Clutch

Exedy

With over 80 years in business and over 10,000 employees Exedy has proved their griphold on the clutch scene.Exedy is the manufacturer of many of the major automotive company's performance clutches (NISMO, Mazdaspeed, TRD) the quality of EXEDY is second to none. Exedy clutches come in a variety of models and styles and are used in street to professional racing. Some of the major races they are used in are D, Rally and PPIHC Challenge, GT300, GT500.

Exedy can be found here.