Clutch Masters 12-14 Scion FR-S/Subaru BRZ 2.0L 6-Speed FX400 Clutch Kit (Must Use FW-738-SF)
Clutch Masters 15738-HDCL-X is the FX400 8-puck ceramic clutch for the Scion FR-S and Subaru BRZ 2.0L 6-speed, and it is meant for the cars that have already outgrown a street clutch: turbo and supercharged FA20 builds, drag-strip launches and heavy track use where an organic disc glazes or slips. As the listing title says, it must be paired with the Clutch Masters FW-738-SF flywheel.
The FX400 combines the Power Plus I high-leverage, heavy-duty pressure plate with a sprung ceramic button disc. Clutch Masters rates it at a 170 percent increase in holding capacity and calls it an extreme-duty street and road or drag racing system. Ceramic sheds heat far better than organic material, which is why it survives repeated full-boost shifts and launches.
Of the two FX400 versions, the 8-puck (HDCL) is the less aggressive one. Its segmented full-face design keeps a marcel cushion between the linings, so engagement is quick but chatter stays minimal, and Clutch Masters designs it for street-driven vehicles. The 6-puck has no marcel and chatters more. Be realistic, though: the maker states that ceramic discs are never recommended for stock or near-stock cars and can wear faster under easy driving because of harsh engagement and slipping. If your car is mostly stock, the FX350 15738-HDFF-X is the better match.
The kit includes the pressure plate, the segmented 8-puck ceramic disc on a sprung hub, a release bearing, a pilot bearing where applicable, an alignment tool and an instruction card. Shipping weight is 17 lb.
A slipping clutch on a freshly tuned car is not always the disc. Check that the pedal returns fully and the slave is not hanging, bleed the hydraulics, and look for oil on the bellhousing from the rear main or input seal. Datalog a full-load pull in a high gear and compare engine speed against vehicle speed; a steady rpm climb with no matching speed gain is slip. Our slipping diagnosis guide covers the test, and flare versus slip explains what else can look similar.
The listing covers 2012-2014 Scion FR-S and Subaru BRZ 2.0L 6-speed cars. Clutch Masters lists 15738-HDCL-X for:
This is a conversion kit: the disc is larger and the cover is a heavier unit than the factory part, so it bolts only to the FW-738-SF steel flywheel. Clutch Masters also states that flywheel will not work with the OE clutch or any other brand's kit, so the two parts go together. Send us your year and VIN, plus any notes on the flywheel already installed, and we will confirm the setup.
For the cost picture on a full clutch job, read our repair cost comparison.
| Brand | Clutch Masters |
| Part number | 15738-HDCL-X |
| Fits | Clutch Masters 12-14 Scion FR-S/Subaru BRZ 2.0L 6-Speed FX400 Clutch Kit (Must Use FW-738-SF) |
| Vehicle fitment | Scion Fr-S/Subaru Brz (2012-2014) |
| Type | Clutch Kits - Single |
| Condition | New |
| Ships | Same business day (in stock), from the USA |
| Warranty | 1-year |
Clutch Masters builds its FR-S/BRZ/86 kits as conversions with a larger disc and a stronger cover, so they only bolt up to its FW-738-SF lightweight steel flywheel, not the factory flywheel.
The 8-puck HDCL. It keeps a marcel cushion and minimal chatter, and Clutch Masters designs it for street-driven cars. The 6-puck engages harder and chatters more.
No. Clutch Masters says ceramic discs are not recommended for stock or near-stock vehicles. A street build is better served by the FX350.
Clutch Masters lists the 2022-2025 BRZ and GR86 2.4L 6-speed for this part number. Send us your VIN and we will confirm before shipping.
The flywheel (FW-738-SF required), the pilot bearing if used, and the clutch fluid. Repair any rear main or input seal leak while the gearbox is out.
