TTI exhaust too loud

i have the tti h pipe set up on hp manifolds and at about 2000 rpms it resonates a lot louder than any other rpm. it did mellow out a lot from when it was new. i wonder how the x compares.i have been told by a lot of people the car sounds good so im not going to change a thing. i thought about adding resonators on the rear but that would spoil it.