How much power will the GT1CD hold?

OS Giken USA does not publish a torque figure for the GT1CD Clutch for GDB GRB STI. OS Giken Japan places the Street Master range in its 400 PS class. For more power than that, a higher capacity OS Giken series is the better match.

Who is the GT1CD made for?

OS Giken USA describes the Grand Touring clutch as its latest development, aimed at owners who want a little more capacity in a car they drive to shows and events. On the GDB and GRB Impreza WRX STI it suits owners who want smooth, quiet engagement in a car that is driven as much as it is shown.

What does GT1CD mean?

It is the OS Giken model code. GT is the cover series, 1 means a single disc and C is the 215mm disc size. D means the disc has a damped hub that soften driveline shock. The same code system runs across the whole OS Giken clutch range.

Is the GT1CD easy to drive on the street?

Yes. OS Giken USA describes its Grand Touring clutches as smooth and chatter-free, with damped discs that absorb drivetrain shock, and aims them at cars that are driven to shows and events rather than raced. It is the OS Giken range built most around everyday manners.

Which cars does the GT1CD Clutch for GDB GRB STI fit?

The GT1CD Clutch for GDB GRB STI is listed for the Subaru Impreza WRX STI GDB (2004-2007) and Subaru Impreza WRX STI GRB / GRF (2008-2014). Our team will confirm the part number against your chassis and gearbox before the order is placed, so the clutch arrives ready to fit.

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Description

OS Giken GT1CD Clutch for GDB GRB STI Subaru Impreza, Single Plate

OS Giken’s GT1CD Clutch for GDB GRB STI models is the single plate clutch from OS Giken’s Grand Touring series, built around a single 215mm disc with a damped hub and the OS Giken floating pressure system for smooth, chatter-free engagement. OS Giken USA describes the Grand Touring clutch as its latest development, aimed at owners who want a little more capacity in a car they drive to shows and events.

Where It Sits in the Range

The GT1CD Clutch for GDB GRB STI cars is one of several OS Giken clutches listed for the GDB and GRB Impreza WRX STI. The R3C (about 1,100 lb-ft), TR2CD (about 800 lb-ft) and GT2CD (about 650 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 GT1CD for the GDB and GRB Impreza EJ20T with the release conversion parts included.

Features

A single 215mm disc with a damped hub
OS Giken floating pressure system for smooth engagement
Built by OS Giken to be serviced and rebuilt

Applications

Subaru Impreza WRX STI: GDB | 2004-2007 | 2.5L EJ257 turbo (2.0L EJ207 in Japan)
Subaru Impreza WRX STI: GRB / GRF | 2008-2014 | 2.5L EJ257 turbo (2.0L EJ207 in Japan)

Notes

The photo is OS Giken USA’s image of the GDB GT2CD and is representative
Installation labor is not included

Frequently Asked Questions

How much power will the GT1CD hold? OS Giken USA does not publish a torque figure for the GT1CD Clutch for GDB GRB STI. OS Giken Japan places the Street Master range in its 400 PS class. For more power than that, a higher capacity OS Giken series is the better match.
Who is the GT1CD made for? OS Giken USA describes the Grand Touring clutch as its latest development, aimed at owners who want a little more capacity in a car they drive to shows and events. On the GDB and GRB Impreza WRX STI it suits owners who want smooth, quiet engagement in a car that is driven as much as it is shown.
What does GT1CD mean? It is the OS Giken model code. GT is the cover series, 1 means a single disc and C is the 215mm disc size. D means the disc has a damped hub that soften driveline shock. The same code system runs across the whole OS Giken clutch range.
Is the GT1CD easy to drive on the street? Yes. OS Giken USA describes its Grand Touring clutches as smooth and chatter-free, with damped discs that absorb drivetrain shock, and aims them at cars that are driven to shows and events rather than raced. It is the OS Giken range built most around everyday manners.
Which cars does the GT1CD Clutch for GDB GRB STI fit? The GT1CD Clutch for GDB GRB STI is listed for the Subaru Impreza WRX STI GDB (2004-2007) and Subaru Impreza WRX STI GRB / GRF (2008-2014). Our team will confirm the part number against your chassis and gearbox before the order is placed, so the clutch arrives ready to fit.

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.

Additional Information

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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 GT1CD Clutch for GDB GRB STI Subaru Impreza, Single Plate [SB041-AQ6]

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OS Giken GT1CD Clutch for GDB GRB STI Subaru Impreza, Single Plate

Where It Sits in the Range

How OS Giken Japan Lists It

Features

Applications

Notes

Frequently Asked Questions

About OS Giken

Reviews