FX500 clutch kits offer a holding capacity of 200-400% over stock and utilize a solid hub for fast engagement. This clutch is not recommended for IS300s that see any street driving. It is a unsprung style disc that will yield an extremely hard and quick clutch engagement with no slippage. This is the perfect clutch for full race or drag modified cars. This kit would be nearly impossible to drive on the street, so please be sure you do not purchase this kit with daily driving intentions. The 6-puck kit will dissipate heat better than the 4-puck version, but the 4-puck can handle a little bit more power.
Note: For racing only