It sounds like something is rubbing or clunking, heard to describe, started after i switched to eurospec exhaust with no cats. i have been under car and there are no signs of anything making contact anywhere, i have heard maybe my trans mount is going bad, but seems kinda weird it wouldnt start until exhaust changed out.. any ideas

Only does it on right turns, and hard take off, if i pull away gently its fine!!!

 

I had that problem and it was my sway bar bushings. They were literally gone.

 

Sway bar bushings are new, no play at all there!
Maybe i should note that the car has been gone through in the last 6 years, replaced just about every hose, and piece of rubber on it..