Contact local trusted tuners that do that, There was one near me thats doing my whole build tuned to e85 he just told me to upgrade those components I forget which site I looked at but it had an upgrade system for our v6
Before resonators
https://drive.google.com/folderview?id=0Bw0De2nIKrGcc0pMcnlaUmFYcUk
After Resonators
https://drive.google.com/file/d/0Bw0De2nIKrGcMFlIN09lMWpwbVE/view?usp=docslist_api
They kept the xpipe in for support and they said it would work better so they put it right behind it so x pipe isnt for sale. but here it is I will do video.
Only thing different on the exhausts and I looked into it when I bought the x pipe, everything after the headers is the same aside from the diameter of the pipe after the resonator.
I have a full exhaust bbk longtube high flows x pipe and roush axle back 70-80 barely any at speeds that high unless going up a hill or pushing the pedal harder
My setup is with high flows and long tubes I can take a pic tomorrow when the car is back my wife went on a business trip with it, but let me know if you wanted to see it. video below
https://drive.google.com/file/d/0Bw0...ew?usp=sharing
Yes it fits fine near the cats its the side of the axleback will need clamps in my case it was easier and just as cheap to weld into place in the rear again selling mine if interested.
I did the opposite I did long tubes to high flow cats and I am glad because I am putting MSRB resonators on this weekend to replace the x pipe because it was far to raspy, a lot of people including myself looked at my car in disgust of how it sounded at certain rpms.