ACT

The High-Torque Solution for Big-Power E85 & Upgraded Turbo STIsThe ACT Xtreme Performance Street Sprung Clutch Kit (SB10-XTSS) is built for the high-horsepower enthusiast who needs serious...

The Ultimate Big-Power Option for Street & Track WRX BuildsThe ACT Xtreme Performance Street Sprung Clutch Kit (SB11-XTSS) is engineered specifically for high-powered, turbo Subarus pushing past...

The Gold Standard for Track & Daily STI BuildsThe ACT Heavy Duty Performance Street Sprung Clutch Kit (SB10-HDSS) is the ultimate clutch upgrade for the 2.5L EJ257-powered Subaru WRX STI...

The Definitive Daily-Driver Clutch UpgradeIf you are running an aggressive street build, a full-bolt-on setup (FBO), or an upgraded flex-fuel map, your stock Subaru clutch won't survive for long. The...

Maximum Acceleration & Ultra-Low Inertia for Track BuildsIf you are building a dedicated track car, a high-RPM time attack weapon, or a drag car that needs to snap through gears as fast as...

Quicker Throttle Response Without Sacrificing DrivabilityThe ACT XACT Streetlite Flywheel (600235) is the ideal lightweight upgrade for daily-driven or spirited street Subaru STIs. Weighing in at 15...

The $4 Lifesaver of Your Transmission InstallThere is nothing worse than fighting a heavy transmission bellhousing on a transmission jack because your clutch disc is off by a single millimeter. The...

Small Component. Massive Responsibility.Weighing in at just a fraction of a pound, the ACT Clutch Pilot Bearing (PB1004) is arguably the most critical "while you're in there" replacement part in your...

The Absolute Cure for Pull-Type Clutch SeparationIf you drive a manual-transmission Subaru STI, an early 2.0L WRX, or an Evolution VIII/IX/X, you are likely familiar with the unique quirks of a...

Smooth Engagement, Shift After ShiftThe ACT Clutch Release Bearing (RB601), commonly known as a throwout bearing (TOB), is a premium, high-quality component engineered to ensure flawlessly smooth...