Clutch Masters FX100 Subaru WRX STI 2004 – 2021
Even with basic bolt on mods the EJ25 motor in your STI will be getting close to 300HP or even more with some of the newer models of STI’s. At this power level the stock clutch becomes incapable of supporting the upgrades and more aggressive driving from track days. The FX100 clutch kit for the STI offer a 70% increase in holding capacity over factory clutch and is a must have to put the power to the ground for any track ready STI.
The FX100 System uses the Power Plus I High Rev Pressure Plate with a sprung steel backed organic friction material disc. This clutch is engineered for street driven vehicles, extended wear, and additional clamping force for the enthusiast who has added minor bolt-ons such as an exhaust and or intake system, up to 50hp NO2, and one of our infamous Brewed tunes. It features only slightly increased pedal pressure over factory, longer life than stock, and normal clutch feel during engagement and disengagement for a very smooth operation.
FX100 clutch kit includes:
- Steel Backed Organic Friction Material
- Heavy-Duty Sprung Hub
- OEM or better Release Bearing
- Pilot Bearing
- Alignment Tool
- Instruction Card
**The difference between the High Rev pressure plate and the Heavy Duty pressure plate of 15017-HD00 is the High Rev kits have an even stronger and reinforced pressure plate to withstand higher RPM’s for your built EJ25’s.**