Made a vid of my "flywheel noise" , is it the flywheel? ---

[batchman]

New video link didn't work for me. To re-iterate, start with the easiest and most likely stuff first:

Originally Posted by batchman

You may have an exhaust leak.

Originally Posted by Pete

Check for loose exhaust screws.

We will all find injector issues at some point but your first video was not the sound of a dual-mass getting hammered by a misfire.

Originally Posted by alwayscode390

Is this something I should take to a Chevy Dealership

I think it's pretty safe to say you should *NEVER* take a C4 ZR-1 to a dealer under almost any circumstances. The only time I would even consider it was if a friend or fellow enthusiast who knew these cars happened to work at one.

It can be a very trying moment to find yourself with an unhappy sound coming from something nearing exotic. Try not to over-google the problem - you will convince yourself the world is ending. What you really need is a relationship with a corner garage whose work in process includes unusual stuff and whose chief mechanic is a non-megabuck racer of some sort. Maybe that's your "performance garage" or maybe it's not - a lot of those shops are intent only on lightening your personal carry gear (wallet) in my experience.

Best of luck,
- Jeff