I finally ordered my cutout, haven't got it yet. Going to be mounting at the front of the I pipe since I can't put it in front of the cat. I got a down pipe to weld on the flange to put on the cutout so my floor doesn't start burning up. My question, how loud should I expect it to be? And does anyone have any sound clips?

when i first started up my 400, i started it with headers and a y-pipe only. it was so loud that it rattle alot of crap off the wall in my house. it really depends on the motor. either way it should still be very loud

Good, my neighborhood has decided to put in speedbumps. I'll have fun getting on the gas after I go over one at 2am.

here is a sound clip for you (stock headers, stock Ypipe, cut out)
and a pic of my cut out:

I'm just a little bummed that I have to put it after my cat.