The evolution of OS Giken is a diverse one, beginning in 1960 with Mr. Okazaki’s desire to build a Japanese race engine that could compete with the then current European complement of racers. Over the years Mr. Okazaki worked on various projects ranging from motorcycles to 4-wheel drive automobiles. But the OS Giken company was officially founded in 1973 with the determination to produce high performance products that are of the highest quality and as a result they have established themselves as a competitor to be reckoned with in today’s high performance aftermarket industry.
The OS Giken specialty lies in the production and design of engine and drivetrain components and the company has earned the reputation of being among the world’s most accomplished drivetrain manufacturers. This reputation could only be achieved through dedication and forward thinking and to this end OS Giken sees to it that all of their parts are totally and completely manufactured and assembled in hous...Read More
OS Giken Mini Cooper S R56 1.6L 6MT STR Series 215mm Solid Soft Release Sleeve Assy. & FW Bolts
CATALOG # 001257964
SKU: mn023-bj5
Starting at $169/month
with .
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OS Giken Mini COOPER/S R50/R53 STR Series Twin Plate w/Soft Diaphragm Clutch
CATALOG # 001257966
SKU: mn021-bj5
Starting at $169/month
with .
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OS Giken Porsche Boxster S (1st Gen) G50 Type Super Lock LSD
CATALOG # 001257937
SKU: pr133-ha
Starting at $172/month
with .
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OS Giken 2014+ Porsche Cayman S 3.4L (981) (MT Only) Super Lock LSD
CATALOG # 001257938
SKU: pr153-ha
Starting at $172/month
with .
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OS Giken Porsche 996/997 Turbo 4WD C-Type Super Lock LSD
CATALOG # 001257939
SKU: pr122-ha
Starting at $172/month
with .
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OS Giken 72-88 Porsche 915/930 MT Various Super Lock LSD 28/25-456-12-10S COARSE Spline
CATALOG # 001257940
SKU: pr014-ha
Starting at $172/month
with .
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OS Giken Super Lock LSD BMW E36 M3 EURO ONLY/ E38/ E39 M5/ E46 M3/ E60 M5/6/ E8X M/ E9X M3
CATALOG # 001257941
SKU: bm237-ha
Starting at $172/month
with .
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OS Giken 72-88 Porsche 915/930 (MT Only) Super Lock LSD
CATALOG # 001257942
SKU: pr013-ha
Starting at $172/month
with .
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OS Giken Porsche 944 2.5/2.7/3.0L (MT Only) Super Lock LSD
CATALOG # 001257943
SKU: pr061-ha
Starting at $172/month
with .
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OS Giken 87+ Porsche G50 Type MT Only / 968 / Boxster S (1st Gen) Super Lock LSD
CATALOG # 001257944
SKU: pr112-ha
Starting at $172/month
with .
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OS Giken Porsche 997 3.6/3.8L Aisin Trans (MT Only) Super Lock LSD
CATALOG # 001257945
SKU: pr121-ha
Starting at $172/month
with .
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OS Giken Porsche Boxster Non-S (1st Gen / 5MT Only) Super Lock LSD
CATALOG # 001257946
SKU: pr131-ha
Starting at $172/month
with .
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OS Giken Porsche Boxster S (2nd Gen / MT Only) / Cayman (MT Only) Super Lock LSD
CATALOG # 001257947
SKU: pr151-ha
Starting at $172/month
with .
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OS Giken Porsche Boxster Non-S (2nd Gen / 5MT Only) Super Lock LSD
CATALOG # 001258047
SKU: pr132-ha
Starting at $172/month
with .
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OS Giken Mitsubishi LANCER EVO 4-9 CP9A STR Series Twin Plate w/Soft Diaphragm Clutch
CATALOG # 001257921
SKU: mt031-bj5
Starting at $174/month
with .
SEE DETAILS
OS Giken Mitsubishi LANCER EVO 10 CZ4A STR Series Twin Plate w/Soft Diaphragm Clutch
CATALOG # 001257922
SKU: mt071-bj5
Starting at $174/month
with .
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OS Giken Mitsubishi GTO (3000GT) Z16ATURBO R Series Triple Plate w/Floating Center Hub Clutch
CATALOG # 001257923
SKU: mt091-ch3
Starting at $174/month
with .
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OS Giken Mazda RX8 13B-MSP STR Series Twin Plate w/Soft Diaphragm Clutch
CATALOG # 001257924
SKU: mz101-bj5
Starting at $174/month
with .
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OS Giken Mazda RX7 13BT STR Series Twin Plate w/Soft Diaphragm Clutch
CATALOG # 001257925
SKU: mz121-bj5
Starting at $174/month
with .
SEE DETAILS
OS Giken Nissan SILVIA SR20DE /T R Series Triple Plate w/Floating Center Hub Clutch
CATALOG # 001257926
SKU: ns044-ch3
Starting at $174/month
with .
SEE DETAILS
OS Giken Nissan SKYLINE RB26DETT STR Series Dampened Twin Plate w/Soft Diaphragm Clutch
CATALOG # 001257927
SKU: ns201-bj5
Starting at $174/month
with .
SEE DETAILS
OS Giken Subaru IMPREZA GC8 STR Series Twin Plate w/Soft Diaphragm Clutch
CATALOG # 001257928
SKU: sb031-bj5
Starting at $174/month
with .
SEE DETAILS
OS Giken Nissan SKYLINE BNR32 Twin Plate Dampened w/Soft Diaphragm Clutch Kit (Release Assy Incl)
CATALOG # 001257929
SKU: ns311-bj5
Starting at $174/month
with .
SEE DETAILS
OS Giken 86-96 Chevy Corvette (MT) / 92-02 Dodge Viper (MT) Super Lock LSD
CATALOG # 001257908
SKU: ch051-ha
Starting at $175/month
with .
SEE DETAILS
About OS Giken
The evolution of OS Giken is a diverse one, beginning in 1960 with Mr. Okazaki’s desire to build a Japanese race engine that could compete with the then current European complement of racers. Over the years Mr. Okazaki worked on various projects ranging from motorcycles to 4-wheel drive automobiles. But the OS Giken company was officially founded in 1973 with the determination to produce high performance products that are of the highest quality and as a result they have established themselves as a competitor to be reckoned with in today’s high performance aftermarket industry.
The OS Giken specialty lies in the production and design of engine and drivetrain components and the company has earned the reputation of being among the world’s most accomplished drivetrain manufacturers. This reputation could only be achieved through dedication and forward thinking and to this end OS Giken sees to it that all of their parts are totally and completely manufactured and assembled in house under only the strictest quality control.
Take as an example the OS Giken clutch that is not designed the usual way but is designed with the demands of the different race disciplines in mind; hence, the up to six different twin discs offered for a given application. The OS Giken clutch possibilities are an impressive range from the Super Single clutch kit that can handle the heat capacity of track and aggressive use and is a simple bolt on to the impressive R series found in Formula Drift vehicles due to their ability to handle heat and abuse. And there are lots in between including one if you are not an aggressive driver, the Grand Touring Series, designed to be easier to slip and drive everyday. Lots of choices with the impressive OS Giken clutch.