What does the Movement Alteration Kit for GC8 Impreza do?

The Movement Alteration Kit for GC8 Impreza adapts the factory pull-type clutch release on the GC8 Impreza WRX STI so it can operate a push-type OS Giken clutch. Without it, the factory release system cannot work with those clutches at all. OS Giken designs each kit for a specific car and release layout.

Which OS Giken clutches need it?

OS Giken lists this kit for the TS2B, TR2CD, R2CD and R3C on the GC8 Impreza WRX STI. Our team can confirm the pairing for your clutch before you order, so the right kit arrives with it. OS Giken designs each kit for a specific car and release layout.

Can I use it with another brand of clutch?

No. OS Giken states that its Movement Alteration Kits are designed to work with OS Giken clutches, and that using one in an unintended application can cause clutch components to fail. Use it only with the OS Giken clutch it is meant for. OS Giken designs each kit for a specific car and release layout.

Should it be installed together with the clutch?

Yes. The kit changes how the release system operates, so it goes in during the same job as the OS Giken clutch. Have both fitted by a shop familiar with multi-plate clutches, following the instructions OS Giken supplies with the parts. OS Giken designs each kit for a specific car and release layout.

Do some OS Giken clutches for this car already include it?

Yes. OS Giken Japan lists its GC8 Street Master, STR and pressed-steel Super Single clutches with the release conversion parts included, so those do not need this kit. Our team will confirm what your clutch needs. OS Giken designs each kit for a specific car and release layout.

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Description

OS Giken Movement Alteration Kit for GC8 Impreza Subaru WRX STI EJ20

OS Giken’s Movement Alteration Kit for GC8 Impreza installs is the conversion that lets OS Giken’s push-type clutches work with the factory pull-type clutch release on the GC8 Impreza WRX STI. In a pull-type system the release bearing is drawn away from the engine to free the clutch, while a push-type clutch is released by pressing toward it, so the two will not work together without changing the release arrangement. OS Giken USA describes its Movement Alteration Kits as made for exactly this job, and this is the kit it lists for the GC8 Impreza.

Which Clutches Use It

OS Giken Japan lists release conversion parts as required with its GC8 multi-plate clutches, and OS Giken USA sells them as this kit. Turn 14 names other kit numbers on two GC8 clutches that OS Giken does not sell. Our listings for the TS2B for GC8 Impreza, TR2CD for GC8 Impreza, R2CD for GC8 Impreza and R3C for GC8 Impreza link back to it.

Features

Converts the factory pull-type release for push-type OS Giken clutches
Listed by OS Giken USA for the GC8 Impreza WRX STI
Designed to work with OS Giken clutches only
Installed together with the clutch

Applications

Subaru Impreza WRX / STI: GC8 | 1992-2000 | 2.0L EJ20 turbo | with a push-type OS Giken clutch

Notes

This Movement Alteration Kit for GC8 Impreza installs is for use with push-type OS Giken clutches only
Turn 14 names other part numbers for this kit on some clutch listings; we have asked Turn 14 and OS Giken to confirm
Installation labor is not included

Frequently Asked Questions

What does the Movement Alteration Kit for GC8 Impreza do? The Movement Alteration Kit for GC8 Impreza adapts the factory pull-type clutch release on the GC8 Impreza WRX STI so it can operate a push-type OS Giken clutch. Without it, the factory release system cannot work with those clutches at all. OS Giken designs each kit for a specific car and release layout.
Which OS Giken clutches need it? OS Giken lists this kit for the TS2B, TR2CD, R2CD and R3C on the GC8 Impreza WRX STI. Our team can confirm the pairing for your clutch before you order, so the right kit arrives with it. OS Giken designs each kit for a specific car and release layout.
Can I use it with another brand of clutch? No. OS Giken states that its Movement Alteration Kits are designed to work with OS Giken clutches, and that using one in an unintended application can cause clutch components to fail. Use it only with the OS Giken clutch it is meant for. OS Giken designs each kit for a specific car and release layout.
Should it be installed together with the clutch? Yes. The kit changes how the release system operates, so it goes in during the same job as the OS Giken clutch. Have both fitted by a shop familiar with multi-plate clutches, following the instructions OS Giken supplies with the parts. OS Giken designs each kit for a specific car and release layout.
Do some OS Giken clutches for this car already include it? Yes. OS Giken Japan lists its GC8 Street Master, STR and pressed-steel Super Single clutches with the release conversion parts included, so those do not need this kit. Our team will confirm what your clutch needs. OS Giken designs each kit for a specific car and release layout.

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 Movement Alteration Kit for GC8 Impreza Subaru WRX STI EJ20 [SB031-ALT]

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OS Giken Movement Alteration Kit for GC8 Impreza Subaru WRX STI EJ20

Which Clutches Use It

Features

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Notes

Frequently Asked Questions

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