I've got a SPEC stage III on my car. The only complaint I have is that the pucks look a bit thin and I'm worried it might not last a long time. Then again, it could be some tough clutch material and end up lasting a lot longer than my stock clutch.
Anyways, for performance it engages smoothly enough that on my stock KA24DE it doesn't chatter, but I can get a small chirp in the 2 - 3 shift on a stock engine (although this is with snow tires). Hopefully I'll be able to appreciate it more when the turbo is on.
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