Exedy Stage 5 Triple Metallic Disc Clutch Kit – 2004-2021 Subaru STI

Exedy Stage 5 Triple Metallic Disc Clutch Kit, 2004-2021 Subaru WRX STI

The Exedy Stage 5 Triple Metallic Disc Clutch Kit for the 2004-2021 Subaru WRX STI is the ultimate clutch solution for the highest-output STI builds. Three metallic discs acting simultaneously provide holding capacity that exceeds any twin disc system, the correct specification for extreme EJ builds where twin disc capacity has been surpassed.

DETAILS

• Triple metallic disc system, maximum possible holding capacity on EJ platform
• Three discs + two floater plates, triple the friction surface of a single disc
• For absolute maximum-output EJ STI builds
• Aggressive engagement, track-oriented character
• Fitment: 2004-2021 Subaru WRX STI EJ207/EJ257 6MT

A triple disc clutch is at the extreme end of mechanical clutch capacity, the three-disc/two-floater configuration provides three times the friction surface area of a single disc. This level of capacity is reserved for the most extreme STI builds, where turbocharger size, fueling, and tuning have pushed the EJ engine to output levels that challenge even twin disc systems.

Triple disc clutch engagement is significantly different from single or twin disc. The engagement is firm and definitive, rev matching on every shift is not optional, it is required for smooth operation. The system is street-drivable but optimized for performance use. Drivers committed to this level of clutch will adapt; those wanting a daily driver should consider the twin disc options.

What’s in the Box

• Exedy triple metallic disc set (3 discs)
• Exedy pressure plate
• Floater plates (2)
• Release bearing
• Pilot bearing
• Alignment tool

Why Choose Exedy

Exedy is the world’s largest clutch manufacturer and the OEM supplier to more than six major vehicle manufacturers globally, including Toyota, Honda, Subaru, and Mitsubishi. Every Exedy performance clutch is designed and manufactured as a purpose-built performance component, not a modified OEM part, not a remanufactured unit, but an engineered system built specifically for performance use from the ground up. Exedy’s research and development happens on actual race programs alongside their road car product development, meaning the technology that wins championships filters directly into the street performance catalog. When you install an Exedy clutch, you are installing a product from the company that builds the OEM clutch for the car it is replacing.

The RallySport Take

The Exedy Stage 5 triple disc for the STI is for the most serious EJ builds on the platform. This level of clutch is the correct choice when twin disc capacity has been exhausted. Fits the 2004-2021 Subaru WRX STI with EJ207/EJ257 6MT.

Fitment