Upgraded 240mm change over kit. Upgraded Aluminum flywheel included. Will not work with OEM or different brand flywheel. Included: HD pressure plate, sprung clutch disc, tool, and aluminum flywheel._x000D__x000D_110% Increase in Holding Capacity - STREET/RACE_x000D__x000D_The FX350 System uses the Power Plus I, Hi-Levarage, Heavy-Duty Pressure Plate utilizing our Fiber-Tough friction material. This clutch has a slightly increased holding capacity then the FX300 but will have a slightly more aggressive engagement and will produce some chatter. Similar to the FX300 this clutch is designed for the serious street enthusiast who also might spend a weekend and the track and is running a normally aspirated car that has been highly tuned with cylinder head work such as cams, or with a medium-boost turbo or supercharger setup, or up to 100hp NO2. For years enthusiasts have had to compromise durability for longevity for drivability and vice versa, however with our Fiber-Tough material we have closed the gap between these two tradeoffs. Heavy-Duty Segmented Fiber-Tough DiscSteel Backed Segmented Fiber-Tough Friction MaterialHeavy-Duty Sprung Hub (when applicable)Marcel Spring WaferOEM or better Release BearingPilot Bearing (when applicable)Alignment ToolInstruction CardOrganic/ Kevlar/ Fiber-Tough Clutch kits are expected and tend to have a higher life expectancy than OEM, however not guaranteed. Improper Installation, Driving style, performance upgrades, Break in procedure and light weight flywheels will effect and have a role in determining the life expectancy of the clutch kit.