FX Racing Stage 2 clutch kit is a step up from our Stage 1 clutch kit. This is a versatile set up for the street and on the track. It provides a smooth engagement yet it can holds 50%25+ more power over stock clutches. This is a direct factory replacement clutch kit thus no modifications are needed and the clutch kit includes only the highest grade components from world s leading high performance clutch manufacturer. The Carbonized friction material is used on all Stage 2 clutch kit to have higher burst strength and heat tolerance. The heavy-duty sprung center with heat treated springs and retainer rivets to increase strength and reliability. The FX Racing pressure plate features special single diaphragm design to increase clamp load. It features induction hardened diaphragm CNC machined castings stronger drive straps and rivets. FX Racing pressure plate provides smooth and precise feel with easy modulation. All FX Racing pressure plate is load tested on a special testing tool for quality assurance. This complete clutch kit includes: -FX Racing Heavy-Duty Pressure Plate -FX Racing Stage 2 HD Carbon Disc (225mm 22 spline) -Release Bearing -Pilot Bearing -Alignment Tool -Installation Guide Vehicle Application Fits 2004 - 2013 Mazda 3 (2.0L; 2.3L; 2.5L 4cyl Non-Turbo) Fits 2006 - 2009 Mazda 5 (2.3L 4cyl)