Clutch Masters 2015 Subaru WRX 2.0L 6-Spd FX400 6 Puck Clutch Kit
The Clutch Masters 15020-HDC6 is the most aggressive single disc kit in the FX400 line for the FA20 turbo WRX 6-speed. Our listing is for the 2015 model, and Clutch Masters lists it for 2015-2017. This is a race-leaning clutch for a WRX making serious power: a bigger turbo, flex fuel or an aggressive tune, drag passes or launches where a street disc simply glazes and gives up. If your car is close to stock and driven in traffic every day, this is the wrong kit, and we say that up front.
Clutch Masters pairs its Power Plus I hi-leverage heavy duty pressure plate with a sprung ceramic disc built as six separate paddles. Ceramic holds heat far better than organic or Kevlar, and putting the clamp load on six small pucks raises the pressure on each one, which is how the kit reaches the 170 percent holding increase Clutch Masters rates it at. The hub is still sprung to soak up some driveline shock, but the 6-puck has no marcel spring between the linings. That makes engagement quick, close to on or off, and Clutch Masters warns it may chatter slightly in first and reverse.
The 6-puck is the harder-biting of the two FX400 designs. Clutch Masters also notes that a ceramic disc is not meant to make a clutch last longer; it is there to hold more torque and survive heat. Driven gently on the street, a ceramic disc can actually wear faster because it gets slipped more during takeoffs.
In the box: pressure plate, 6-puck ceramic disc, release bearing, alignment tool, instruction card and decals, with a pilot bearing where the application calls for one. No flywheel. Shipping weight is about 20 lb.
Make sure the problem is the clutch and not the hydraulics or an oil leak. A fourth-gear pull at full boost that shows the tach climbing ahead of road speed means slip; the road test is laid out in our slipping diagnosis guide. If the pedal feels soft or the clutch drags, bleed and inspect the system first. Also be honest about use: if the car spends most of its time in stop-and-go traffic, compare the FX400 8-puck 15020-HDCL, which Clutch Masters says has minimal chatter, before you choose the 6-puck.
Clutch Masters lists 15020-HDC6 for the 2015-2017 Subaru WRX 2.0L turbo 6-speed. Our listing title names 2015. It does not fit the WRX STI, the 2.5L 5-speed WRX, or the 2022-up WRX. Subaru changed the clutch partway through the 2018 model year at VIN J806877, and cars from that VIN on take the 15915 series kits. For any 2018 car, a swapped transmission, or an aftermarket flywheel already installed, send us the year and full VIN so we can confirm the match before it ships.
| Brand | Clutch Masters |
| Part number | 15020-HDC6 |
| Fits | Clutch Masters 2015 Subaru WRX 2.0L 6-Spd FX400 6 Puck Clutch Kit |
| Vehicle fitment | Subaru Wrx (2015) |
| Type | Clutch Kits - Single |
| Condition | New |
| Ships | Same business day (in stock), from the USA |
| Warranty | 1-year |
It can. Clutch Masters says the 6-puck has no marcel, engages very quickly and may chatter slightly in first and reverse. It is best suited to cars that see drag, track or high-boost use.
Both are FX400 kits rated at 170 percent over stock with the same pressure plate. The HDC6 uses six ceramic paddles with no marcel for the most aggressive bite. The HDCL uses an 8-puck full face ceramic disc with a marcel cushion, which Clutch Masters says keeps chatter minimal for street use.
Yes. Clutch Masters lists 15020-HDC6 for the 2015-2017 WRX 2.0L turbo 6-speed. Cars built from VIN J806877 in 2018 need the 15915 series instead.
Clutch Masters says ceramic discs are never recommended for stock or near-stock cars. On a lightly modified car, a Kevlar or Fiber-Tough kit will drive better and usually last longer.
No. The kit includes the pressure plate, disc, release bearing, alignment tool, instruction card and a pilot bearing when applicable. Have your flywheel resurfaced or replaced during the job.
