My SPEC stage 3+ with lightweight flywheel chattered like crazy. I went through the break in process which doesn't take long here. Lets just say it finally stopped chattering while driving a couple days ago about 3-4k miles after install. I got to where I was going and turned off the car, when I got back to the car a little while later my car wouldn't start. It sounded like the starter wasn't engaging all the way and making proper connection with the ring on the flywheel. A couple tries later I decided to take off the starter and inspect the area to see if the starter went bad or something else was wrong. I could see recent scratch marks on the starter from where it looked to be hitting something. I reached my hand down inside and bumped up against the ring gear on the flywheel. It was ridiculously loose so I first though the bolts had somehow come loose or they snapped. Upon further inspection I realized the Ring gear had simply broken its welds to the ret of the flywheel and was just freely sitting in side the compartment.... Not a good day for me. I bought the SPEC back in February so it should still be under warranty. I will find out later and post pic once I drop the trans and install the original parts in the next couple days. a simple rolling jump start still starts the car luckily. Anyone else had this problem with bad welds?