Its not that its a cheap clutch(KMZ08) its just not for FSDE-T but it will work and hold up under sedate conditions as you've seen. The 10807 is a stage 1 upgrade over OEM from Mazda.
My original clutch is holding up well @ 116,000 miles having seen various amounts of boost pressure throughout its life. I would seriously consider putting in another one at this point but feel that I have a ways to go before I'll need to. I got 141,000 miles on my other boosted Mazda OEM clutch before upgrading to the Spec Stage 2.
I replaced mine at 93k and it looked like it had another 100k of life left. Lesson learned. I did it as preventative maintenance.
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