RPS was sending those disc's out in there street clutch kits..... They are OEM replacement disc's that nissan sells in there clutch kits. RPS makes the pressure plates with higher clamp load and they figured the disc the factory sells would be fine for a street application. When the first one failed in ASH's car, I had RPS stop useing them. We have had a total of 4 of them fail now and if anyone else ends up having a problem with one of those Disc we will replace them free no matter how many miles are on them. RPS now uses a much stonger disc.