Clutch Masters 15-23 Ford Mustang 2.3L EcoBoost FX100 Clutch Kit - 415ft/lbs Torque
Clutch Masters 07775-HR00-X is the FX100 single-disc clutch kit for the 2015-2023 Ford Mustang with the 2.3L EcoBoost four-cylinder and six-speed manual. It is the mildest step in the Clutch Masters EcoBoost range: an organic, street-friendly clutch for owners whose factory clutch has worn out or started to slip after a few bolt-ons, and who want more holding power without the grab and chatter of a puck disc. Clutch Masters rates it at an estimated 415 ft-lb of torque capacity.
Ford rated the S550 EcoBoost at 310 hp and 320 lb-ft from the factory, and the turbo four makes that torque low in the rev range, which is where a clutch is loaded hardest. The FX100 uses the Clutch Masters Power Plus I heavy-duty pressure plate over a heavy-duty disc with steel-backed organic facings and a marcel spring wafer. The marcel cushion is what keeps engagement progressive, so the pedal and take-up feel close to stock. Clutch Masters claims a 70 percent increase in holding capacity, only slightly higher pedal effort than factory, and longer life than the stock clutch.
An important detail: this kit uses a larger disc than the factory clutch, and Clutch Masters states it will not fit the factory EcoBoost flywheel. It must be paired with the Clutch Masters FW-023-SF lightweight steel flywheel, which the maker built as a conversion part for its FX100-FX500 kits. Budget for both parts when you plan the job.
Do a roll-on in fourth gear from low rpm with the car fully warm. If the tachometer climbs as boost builds while road speed does not keep up, the clutch is slipping. If the car only feels down on power with no rev flare, check for a boost leak or a tune issue first. Rule out the hydraulics as well, because air in the clutch line causes drag and hard shifts that a new clutch will not cure. Our slipping diagnosis guide covers the test, and the flare vs. slip guide helps separate clutch slip from other problems.
Clutch Masters lists 07775-HR00-X for the 2015-2023 Ford Mustang 2.3L EcoBoost with the six-speed manual. It does not fit automatic cars, the V6, or the 5.0L GT. Because it requires the FW-023-SF flywheel, you cannot reuse your factory flywheel with this kit. If you are unsure of your build, send us your year and VIN and we will confirm before you order. More clutch parts are in our rebuild kits category.
If the car already has a big turbo or heavy tune, the FX100 may not be enough. The FX400 6-puck kit is rated at an estimated 515 ft-lb, and the McLeod RST twin-disc includes its own steel flywheel.
| Brand | Clutch Masters |
| Part number | 07775-HR00-X |
| Fits | Clutch Masters 15-23 Ford Mustang 2.3L EcoBoost FX100 Clutch Kit - 415ft/lbs Torque |
| Vehicle fitment | Ford Mustang (2015-2023) |
| Type | Clutch Kits - Single |
| Condition | New |
| Ships | Same business day (in stock), from the USA |
| Warranty | 1-year |
No. Clutch Masters states the kit uses a larger disc than the factory clutch and must be used with its FW-023-SF lightweight steel flywheel.
Clutch Masters rates the 07775-HR00-X at an estimated 415 ft-lb, a 70 percent increase in holding capacity over stock.
Close to it. The organic disc has a marcel spring wafer for smooth engagement, and Clutch Masters describes only slightly increased pedal pressure and normal clutch feel.
Clutch Masters aims the FX100 at street cars with minor bolt-ons. For big-turbo or aggressive tunes, step up to a higher-rated kit such as the FX400.
No. It is listed only for the 2.3L EcoBoost with the six-speed manual.
Yes. Clutch Masters asks for at least 500 miles of normal stop-and-go driving before any hard use.
