Clutch Masters 18-19 Subaru WRX 2.0L (Mid 2018 with VIN J*806877) FX350 Clutch Kit
Clutch Masters part number 15915-HDFF is the FX350 single disc clutch kit for the 2.0L turbo Subaru WRX 6-speed built from mid-2018 on, starting at VIN J806877. It is the step for a WRX with a tune, bigger turbo or other boost upgrades that now slips the stock clutch, where the owner wants more grip than a street organic disc but does not want to jump to a puck disc or a twin.
The FA20 turbo engine sends its torque through a single dry clutch to the 6-speed. In the FX350, Clutch Masters pairs its Short Shift billet aluminum cover with the Power Plus I hi-leverage heavy duty pressure plate and a steel-backed, segmented disc faced with its Fiber-Tough material on a sprung hub with a marcel wafer. Clutch Masters rates the FX350 at a 110 percent increase in holding capacity and places it just above the FX300 in grip.
The trade is engagement. Clutch Masters says the FX350 engages a little more aggressively than the FX300 and will produce some chatter. It is aimed at a street car that sees the occasional track day and runs medium boost. If your WRX is close to stock and mostly commutes, the Kevlar FX200 kit is smoother and longer lived. Clutch Masters also builds an FX300 between the two for owners who want less bite.
The billet cover is about 10 percent lighter than the factory stamped steel cover, and its modified pivot point keeps pedal effort only slightly heavier than stock. It bolts to the stock single disc flywheel, works with the factory hydraulics, and comes with a new release bearing made for the shorter throw.
Do a fourth gear pull from about 2,500 rpm at full throttle and watch the tach against the speedometer. A rise in rpm without a matching rise in speed is slip. Then check the hydraulic side: a pedal that sinks, a wet slave cylinder or air in the line will keep the clutch from releasing or clamping fully. Our slipping diagnosis guide walks through the road test, and clutch slipping causes covers oil contamination and worn hydraulics.
Subaru changed the WRX clutch partway through the 2018 model year. From VIN J806877 the car uses a larger 240 mm clutch, and the earlier clutches and flywheels do not interchange. This kit fits the later cars. Our listing covers the 2018-2019 WRX 2.0L from that VIN, and Clutch Masters lists 15915-HDFF for the WRX 2.0L turbo 6-speed through the end of that generation. The North American WRX moved to a 2.4L FA24 engine for 2022, so confirm any 2022-up car with us before ordering.
A 2015 to early-2018 car needs a different kit; the earlier FX350 is the 2015-up FX350 listing. If you are not sure which side of the split your car is on, send us the full VIN.
| Brand | Clutch Masters |
| Part number | 15915-HDFF |
| Fits | Clutch Masters 18-19 Subaru WRX 2.0L (Mid 2018 with VIN J*806877) FX350 Clutch Kit |
| Vehicle fitment | Subaru Wrx (2018) |
| Type | Clutch Kits - Single |
| Condition | New |
| Ships | Same business day (in stock), from the USA |
| Warranty | 1-year |
No. It is for the WRX 2.0L built from VIN J806877 on, which uses the larger 240 mm clutch. Earlier 2015 to mid-2018 cars need the 15020 series kits.
Clutch Masters says the Short Shift kits fit the stock single disc flywheel or any aftermarket flywheel designed for OE style clutch kits. Resurface the stock one or replace it if it is heat checked or cracked.
Clutch Masters says it engages a bit more aggressively than the FX300 and will produce some chatter. If smoothness matters more than grip, the FX200 or FX300 is the better fit.
Yes. Clutch Masters states the Short Shift series works with the factory hydraulics, and it includes a release bearing made for the shorter throw.
The billet Short Shift cover with pressure plate, the Fiber-Tough disc, a release bearing, an alignment tool, an instruction card and decals, plus a pilot bearing where the application uses one.
