Never had any problems with the stock clutch on stock power for 80k now, though I never launch the car

 

You could do it yourself also to save you some cash. It's pretty easy, just time consuming. I just did mine a few weeks ago. There's a few writeups on the forum, and there's a pretty good writeup on evomoto.com. Also use the service manual as a reference and for torque specs. Very doable though.

 

Sounds to me like an install error..

I've been running my stock clutch since 40k miles...now at 108k

And the last 25k of that have been on 30psi of e85 at the power in my sig...so the stock clutch can handle some power...and not like I've been easy on it either...but no launches on it...but numerous quick sprints...

 

there are some instances where it is a defect in product itself, im personally running an act hdss with prolite flywheel, and ss clutch lines, my first 2 clutches were bad, one because of a high spot in the dowel pin not causing full disengagement. That lasted 2k, the next one lasted 3k and locked out of 4th, and had to limp home only to find out later clutch disc blew up in like 20 pieces. So now fast forward to today, at that time with those clutches i was only running 285 tq, now im at 385 hp 355 tq, and ive got 30k plus on same clutch/flywheel setup, i think it was the ss clutch lines being installed that helped. Pedal stays firm no sponginess,