2000+ are different than 95-99'*, which are slightly different from 92-94'*. Although I'd like to see an 00 front bracket tried on a 95-99 to see if it lines up with the subframe.
Meanwhile when I did headers it was necessary for me to relocate the strut on the front trans mount. This made the mount mostly solid. Yet the rubber was retained and there is no odd vibration when hitting TCC lockup (like 00+'* get with hockey pucks). I'm putting down copious amounts of power and haven't had an issue with it in 4 years.