Does the R2CD Clutch for GC8 Impreza need anything else to fit?

Yes. The R2CD Clutch for GC8 Impreza is a push-type clutch and the GC8 Impreza WRX STI uses a pull-type release from the factory, so it is installed with the OS Giken Movement Alteration Kit for GC8 Impreza (SB031-ALT). OS Giken Japan lists release conversion parts as required with its GC8 multi-plate clutches.

How much power will the R2CD hold?

OS Giken USA rates the R2CD Clutch for GC8 Impreza at about 880 lb-ft of torque, and OS Giken Japan places the R range in its 700 PS class. That is the top of the OS Giken clutch range, built for competition engines.

It is the OS Giken model code. R is the cover series, 2 is the number of discs and C is the 215mm disc size. D means the discs have damped hubs that soften driveline shock. The same code system runs across the whole OS Giken clutch range.

Is the R2CD usable on the street?

It is a race clutch. Engagement is firm and abrupt, and it passes more noise and driveline shock than a street clutch. It can be driven on the road, but most owners fit it to cars used mainly at events or the track.

Can the R2CD Clutch for GC8 Impreza be rebuilt?

Yes. OS Giken sells Overhaul Kit A (SB031-BH60A), with new discs, center plates, pressure plate and cover bolts, and Overhaul Kit B (SB031-BH60B), which adds a new cover. Our team can order either kit when the clutch needs service. Kit B is the choice when the cover is also worn.

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Description

OS Giken R2CD Clutch for GC8 Impreza Subaru WRX STI EJ20, Twin Plate

OS Giken’s R2CD Clutch for GC8 Impreza models is the twin plate clutch from OS Giken’s R series, built around two 215mm discs and an R series cover on OS Giken’s floating dampened center hub. OS Giken USA rates it at about 880 lb-ft. OS Giken USA describes the R series as its highest capacity clutch, built to withstand transmission shock and abuse from high-powered race cars. OS Giken USA says the R2CD is often found in its own competition drift and drag vehicles.

Where It Sits in the Range

The R2CD Clutch for GC8 Impreza cars is one of several OS Giken clutches listed for the GC8 Impreza WRX STI. The R3C (about 1,100 lb-ft), STR2C (about 575 lb-ft) and TS2B (about 500 lb-ft) cover other points in the range, so the choice comes down to power, pedal feel and how the car is used.

How OS Giken Japan Lists It

OS Giken Japan lists the R2CD for the GC8 Impreza EJ20 turbo with release conversion parts required. Our team will confirm the release parts before the order is placed.

Features

Two 215mm discs
Floating dampened center hub to withstand transmission shock
Rated by OS Giken USA at about 880 lb-ft
Push-type design, installed with the Movement Alteration Kit for GC8 Impreza
Rebuildable with OS Giken overhaul kits

Applications

Subaru Impreza WRX / STI: GC8 | 1992-2000 | 2.0L EJ20 turbo

Notes

This R2CD Clutch for GC8 Impreza installation requires the OS Giken Movement Alteration Kit for GC8 Impreza, sold separately
OS Giken rebuild parts for this clutch are Overhaul Kit A (SB031-BH60A) and Overhaul Kit B (SB031-BH60B)
Installation labor is not included

Frequently Asked Questions

Does the R2CD Clutch for GC8 Impreza need anything else to fit? Yes. The R2CD Clutch for GC8 Impreza is a push-type clutch and the GC8 Impreza WRX STI uses a pull-type release from the factory, so it is installed with the OS Giken Movement Alteration Kit for GC8 Impreza (SB031-ALT). OS Giken Japan lists release conversion parts as required with its GC8 multi-plate clutches.
How much power will the R2CD hold? OS Giken USA rates the R2CD Clutch for GC8 Impreza at about 880 lb-ft of torque, and OS Giken Japan places the R range in its 700 PS class. That is the top of the OS Giken clutch range, built for competition engines.
What does R2CD mean? It is the OS Giken model code. R is the cover series, 2 is the number of discs and C is the 215mm disc size. D means the discs have damped hubs that soften driveline shock. The same code system runs across the whole OS Giken clutch range.
Is the R2CD usable on the street? It is a race clutch. Engagement is firm and abrupt, and it passes more noise and driveline shock than a street clutch. It can be driven on the road, but most owners fit it to cars used mainly at events or the track.
Can the R2CD Clutch for GC8 Impreza be rebuilt? Yes. OS Giken sells Overhaul Kit A (SB031-BH60A), with new discs, center plates, pressure plate and cover bolts, and Overhaul Kit B (SB031-BH60B), which adds a new cover. Our team can order either kit when the clutch needs service. Kit B is the choice when the cover is also worn.

About OS Giken

OS Giken was founded in Okayama, Japan in 1973 by Masaharu Okazaki. It built the TC16 and TC24-B1 DOHC cylinder heads for Nissan L-series engines, began making multi-plate racing clutches in 1982 and started supplying OEM limited-slip differentials in 1983. Development of the Super Lock LSD began in 1997, and of the OS-88 sequential gearbox for the Skyline GT-R in 1998.

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Shipping Policy

Items that are in stock in the US, either at Bulletproof’s warehouse or at a supplier’s warehouse, are generally delivered within 7-10 days. Special order items from overseas take considerably longer. As a courtesy Bulletproof offers delivery estimates to our customers which take into consideration manufacturer availability and shipping schedule. These estimates represent our best guess based on previous orders from the manufacturer and do not in any way imply a guaranteed delivery window. Many manufacturers work in a “just in time” inventory system and often take 2-20+ weeks to produce an item once an order is submitted. All deliverable items are then sent to our Japanese warehouse. Bulletproof ships a minimum of one full ocean freight container every month from Japan, oftentimes more than one a month. Ocean freight takes an average of 4 weeks. Typically it breaks down to one week in Japan for paperwork and customs, two weeks by boat and one week in US customs/clearance. Due to the wide number of variables between manufacturer and shipping schedules, delivery estimates are simply just that – estimates. We attempt to estimate conservatively and we usually deliver faster than our estimates suggest. It is not Bulletproof’s policy to guarantee delivery time of any special order item, this is impossible for us to do. By ordering you acknowledge that there is no required delivery ETA and an order may not be canceled or altered due to manufacturing or shipping delays, all ETA’s are provided as a best guess only. Please review the full Terms & Conditions here.

BP Pricing Difference

We do pricing a little differently on our JDM brands and we believe in making things simple and clear. No hidden fees or surcharges. Every price you see includes the shipping cost to our office in Los Angeles, California and all the associated taxes/duties/fees for bringing the products into the US. The only shipping you ever pay is from our facility in the US to your location. Be wary of resellers that don’t include the cost of international shipping in their pricing on JDM parts. While we believe we’ll always have the lowest all-in price on JDM products, we offer a price match guarantee for all authentic parts purchased from authorized dealers as well. For many international customers, it’s much more affordable to ship from the USA than from Japan directly, as the air freight and ocean freight costs are typically much less. However, for customers looking to ship directly from Japan outside of North America, or domestically in Japan, we can provide pricing specifically for that scenario. Please do not hesitate to contact us with any pricing questions or concerns. Please email us at sales@bulletproofautomotive.com with any inquiries.

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OS Giken R2CD Clutch for GC8 Impreza Subaru WRX STI EJ20, Twin Plate [SB031-BH6]

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OS Giken R2CD Clutch for GC8 Impreza Subaru WRX STI EJ20, Twin Plate

Where It Sits in the Range

How OS Giken Japan Lists It

Features

Applications

Notes

Frequently Asked Questions

About OS Giken

Reviews