Built for Mazdaspeed3 drivers who have pushed past the limits of a stock or single-disc setup, the Clutch Masters CLM10306PTD8RS delivers the clamping force and heat capacity of a true twin-disc race clutch without sacrificing street manners.
The 850 PRO Series twin-disc system is engineered around a forged steel flywheel, SFI-certified pressure plate, and twin 7.25-inch ceramic rigid discs that lock power delivery and eliminate slip under the hardest launches and aggressive track sessions. Every CLM10306PTD8RS kit ships complete so you have everything required to finish the installation in a single afternoon.
| Year Range | Make | Model |
|---|---|---|
| 2007-2013 | Mazda | Mazdaspeed3 |
| Detail | Value |
|---|---|
| Part Number | CLM10306PTD8RS |
| Manufacturer | Clutch Masters |
| Series | 850 PRO Twin Disc |
| Disc Diameter | 7.25 inches |
| Disc Material | Ceramic Rigid |
| Disc Count | 2 |
| Flywheel Type | Forged Steel (included) |
| Flywheel Certification | SFI Certified |
| Application | 2007-2013 Mazda Mazdaspeed3 2.3L Turbo |
| UPC | N/A |
Clutch Masters has been designing and manufacturing performance clutch systems in the United States since 1988. Their PRO Series clutches are engineered in-house and tested on the track, offering complete bolt-in kits that include flywheels, release bearings, and all hardware. Clutch Masters products are trusted by drag racers, road racers, and serious street drivers who demand reliability and repeatability under extreme conditions.
What is the CLM10306PTD8RS?
The CLM10306PTD8RS is the Clutch Masters 850 PRO Twin Disc clutch kit with forged steel flywheel, designed specifically for the 2007-2013 Mazda Mazdaspeed3 2.3L turbo. It is a high-capacity twin-disc system using 7.25-inch ceramic rigid discs and an SFI-certified pressure plate for extreme power handling.
What does the 850 PRO designation mean in CLM10306PTD8RS?
The 850 PRO designation indicates this Clutch Masters system is rated for approximately 850 lb-ft of torque capacity. The PRO Series uses a more aggressive ceramic rigid disc compound compared to the standard FX and Stage series, making it appropriate for modified or race-built Mazdaspeed3 applications.
Will the CLM10306PTD8RS work on a stock 2007-2013 Mazdaspeed3?
While the CLM10306PTD8RS can be installed on a stock Mazdaspeed3, it is primarily designed for built engines, high-boost turbocharged setups, and performance builds pushing well beyond stock power levels. Daily driving with a stock powertrain on this twin-disc system will result in an aggressive pedal feel compared to the stock clutch.
Does the CLM10306PTD8RS include a flywheel?
Yes. The S suffix in CLM10306PTD8RS denotes the steel flywheel is included in the kit. You receive the forged steel flywheel, twin-disc clutch pack, release bearing, pilot bearing, alignment tool, and all required hardware.
Is the CLM10306PTD8RS street drivable?
The 850 PRO twin-disc system is designed for track-focused and high-powered builds, and engagement is noticeably more aggressive than stock. Many users report acceptable street drivability, but expect a stiffer pedal and quicker engagement point than a standard or Stage 1 clutch. It is not recommended for stop-and-go commuting.
What is the torque capacity of the CLM10306PTD8RS?
The 850 PRO series is rated at approximately 850 lb-ft of torque capacity, which comfortably handles heavily modified Mazdaspeed3 builds with upgraded turbos, fuel systems, and engine internals.
Does the CLM10306PTD8RS meet SFI certification requirements?
Yes. Both the pressure plate and the included steel flywheel in the CLM10306PTD8RS carry SFI certification, making this system legal for use at sanctioned drag racing and road racing events that require SFI-certified drivetrain components.
How does the CLM10306PTD8RS compare to the 725 PRO version?
The 850 PRO (CLM10306PTD8RS) offers higher torque capacity and uses a more aggressive ceramic rigid disc than the 725 PRO (CLM10306PTD7RS). The 725 PRO is suitable for moderately built Mazdaspeed3 applications, while the 850 PRO targets fully built high-boost setups where maximum clamping force and heat resistance are required.
WARNING: This product can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and reproductive harm. For more information go to www.P65Warnings.ca.gov.
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