Even the best brand of clutches can fail !! I'm in the process of replacing my less than 25K (about 2 1/2 years of street driving & only 1 track day) ACT stage 2 clutch. As you can see I had a straight up parts failure with the clutch disc.

One of the duel dampner springs came right out of the clutch disc case while my wife was down shifting and exiting the highway last week.

Not only did it take out the clutch, but the smaller inner spring also ruined the flywheel face !! I am now installing a Exedy Racing stage 1 kit that has an organic disc & a Fidanza lightweight flywheel. The Exedy pressure plate is rated just as high as the ACT stage 2 and instead of a six puck Kevlar disc it has an organic full disc. The ACT 6 puck disc really ate up the OEM flywheel, so even if the spring didn't damage the flywheel, next clutch replacement it would have needed to be replaced anyways !! So, unless you have a lightweight flywheel with replacable surface (like the Fidanza), I would stay away from the Stage 2 & stage 3 Kevlar discs. The Exedy Racing kit was also Half the price of a ACT or SPEC clutch !! The Exedy Racing Kit for the Solara 1mz is 16803A. This kit includes Organic disc, Stronger pressure plate, throw out bearing, pilot bearing (not used) & alignment tool. I found this kit on the internet for $275 which is a far cry from the over $400 ACT kit that failed. The Fidanza flywheel number I used is 130881. The flywheel I found for $294, which was still cheaper than the OEM Toyota one that cost $360 at my dealership !! If you are going to use anything other than OEM, I would say Exedy would be the way to go. I know for a fact that the OEM Toyota discs and pressure plates are made by Exedy in japan, so even a Exedy OEM replacement would be just as good as OEM, but cheaper !! If you need a bit better disc and a little more holding power the Exedy Racing kit would be the way to go..........Just my 2 cents !!