How much power will the HTR2CD hold?

OS Giken USA rates the HTR2CD Clutch for GDB GRB STI at about 650 lb-ft of torque. OS Giken USA says HTR clutches are typically good up to about 650 lb-ft, depending on the application. For more power than that, a higher capacity OS Giken series is the better match.

What does HTR2CD mean?

It is the OS Giken model code. HTR 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 HTR2CD easy to drive on the street?

OS Giken USA describes the HTR as a quiet, reliable clutch with a relatively moderate pedal, and its damped versions absorb drivetrain shock. Engagement is firmer than a factory clutch, but it is built for cars that are driven as well as raced.

Can the HTR2CD Clutch for GDB GRB STI be rebuilt?

Yes. OS Giken sells Overhaul Kit A (SB041-BR60A), with new discs, center plates, pressure plate and cover bolts, and Overhaul Kit B (SB041-BR60B), 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 HTR2CD Clutch for GDB GRB STI Subaru Impreza, Twin Plate

OS Giken’s HTR2CD Clutch for GDB GRB STI models is the twin plate clutch from OS Giken’s HTR series, built around two 215mm discs with damped hubs and an HTR cover built to hold more than the STR with a relatively moderate pedal. OS Giken USA rates it at about 650 lb-ft. OS Giken USA describes the HTR series as holding more capacity than the STR while keeping a relatively moderate pedal, and as a quiet, reliable clutch that can go years between overhauls.

Where It Sits in the Range

The HTR2CD 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 HTR2CD for the GDB and GRB Impreza EJ20T with release conversion parts required. Our team will confirm the release parts before the order is placed.

Features

Two 215mm discs with damped hubs
HTR cover with a relatively moderate pedal
Rated by OS Giken USA at about 650 lb-ft
Rebuildable with OS Giken overhaul kits

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

OS Giken rebuild parts for this clutch are Overhaul Kit A (SB041-BR60A) and Overhaul Kit B (SB041-BR60B)
Installation labor is not included

Frequently Asked Questions

How much power will the HTR2CD hold? OS Giken USA rates the HTR2CD Clutch for GDB GRB STI at about 650 lb-ft of torque. OS Giken USA says HTR clutches are typically good up to about 650 lb-ft, depending on the application. For more power than that, a higher capacity OS Giken series is the better match.
Who is the HTR2CD made for? OS Giken USA describes the HTR series as holding more capacity than the STR while keeping a relatively moderate pedal, and as a quiet, reliable clutch that can go years between overhauls. On the GDB and GRB Impreza WRX STI it suits owners who want more capacity than the STR without a heavy pedal.
What does HTR2CD mean? It is the OS Giken model code. HTR 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 HTR2CD easy to drive on the street? OS Giken USA describes the HTR as a quiet, reliable clutch with a relatively moderate pedal, and its damped versions absorb drivetrain shock. Engagement is firmer than a factory clutch, but it is built for cars that are driven as well as raced.
Can the HTR2CD Clutch for GDB GRB STI be rebuilt? Yes. OS Giken sells Overhaul Kit A (SB041-BR60A), with new discs, center plates, pressure plate and cover bolts, and Overhaul Kit B (SB041-BR60B), 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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BP Pricing Difference

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OS Giken HTR2CD Clutch for GDB GRB STI Subaru Impreza, Twin Plate [SB041-BR6]

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OS Giken HTR2CD Clutch for GDB GRB STI Subaru Impreza, Twin Plate

Where It Sits in the Range

How OS Giken Japan Lists It

Features

Applications

Notes

Frequently Asked Questions

About OS Giken

Reviews