Competition Clutch 04-20 Subaru STi 2.5L T Stage 3 - Full Face Dual Friction Clutch Kit
The Competition Clutch 15030-2250 is the full-face member of the maker's Stage 3 family for the Subaru WRX STI with the 2.5L turbo and six-speed. It suits an STI owner whose clutch began slipping after a tune, intake and downpipe, or whose pedal engagement has moved high and the car now smells hot after spirited driving. Our listing covers the 2004-2020 STI.
The STI six-speed uses a pull-type release: the bearing pulls the diaphragm fingers toward the transmission to free the disc. Competition Clutch builds the 15030-2250 for those pull-style cars and pairs a performance pressure plate with a larger 250 mm cover. The maker rates its Stage 3 street/strip kits at up to 150 percent more torque capacity than stock. Our listing describes the disc as full-face dual friction rather than segmented. A full-face disc keeps a continuous friction ring, which generally takes up more gradually than a puck or segmented disc, so it suits an STI that still sees daily traffic. Competition Clutch's product page reuses its general Stage 3 wording, so we do not quote facing materials beyond that. The kit includes the pressure plate, disc, throwout bearing, pilot bearing or bushing where applicable, and an alignment tool.
Hold fourth gear at low RPM and roll into full throttle. If the tach jumps without the car pulling harder, the clutch is slipping. A boost leak or a tune pulling timing feels flat but does not flare RPM, so log boost on the same run. Rule out the hydraulics too: a slave cylinder that will not return fully keeps load on the fingers and makes any clutch slip. Our slipping diagnosis guide and the clutch slipping causes page walk through those checks, and oil on the old disc means a rear main or input seal must be fixed first.
Competition Clutch lists 15030-2250 for the 2004-2014 Subaru Impreza WRX STI and the 2015-2021 WRX STI, 2.5L turbo, pull style. Our listing is titled 2004-2020. The five-speed WRX uses a different clutch and is not covered. The maker's description mentions a billet steel flywheel, but its kit list does not include one, so treat this as a clutch-only kit and plan for a flywheel. Match the spline and release style of your old clutch, or send us your year and VIN before ordering. Other STI clutch options are in the rebuild kits category; for a heavier-duty step, see the segmented ceramic 15030-2600.
| Brand | Competition Clutch |
| Part number | 15030-2250 |
| Fits | Competition Clutch 04-20 Subaru STi 2.5L T Stage 3 - Full Face Dual Friction Clutch Kit |
| Vehicle fitment | Subaru Sti (2004-2020) |
| Type | Clutch Kits - Single |
| Condition | New |
| Ships | Same business day (in stock), from the USA |
| Warranty | 1-year |
No. It is built for the six-speed STI with the 2.5L turbo and pull-style release, 2004-2014 Impreza STI and 2015-2021 WRX STI per the maker. Our listing covers 2004-2020. Five-speed WRX cars use a different clutch.
Plan on no. The maker's text mentions a billet flywheel, but the kit contents list only the pressure plate, disc, throwout bearing, pilot bearing or bushing and alignment tool. Resurface your flywheel or buy one separately.
Both are Competition Clutch Stage 3 kits for the same STI. Our 15030-2250 listing is the full-face dual friction disc, while the 15030-2600 uses a segmented ceramic disc that grabs harder and suits more launches and boost.
The STI clutch hydraulics share the brake fluid reservoir. Bleed with fresh fluid of the grade printed on the reservoir cap after the install.
Yes. Competition Clutch calls for a 500-700 mile break-in with normal driving and frequent shifts before launches or full-boost pulls, so the disc and flywheel bed in evenly.
