I tried and couldn't find any solid info on people who actually have done this mod so here's what I need help with. I have a 2013 GT that has stock cats, BBK x-pipe, and Roush axle backs. I removed the resonators and the sound was 'just about perfect' at normal driving speeds/slow and easy acceleration. For the most part deceleration sounded sweet, but still had a bit too much popping/crackling going on. WOT was ridiculous, but just a bit too loud. I'd rather not draw that much attention to myself. Today I had the stock resonators re-installed and it now sounds average again. Major bummer!!! It's better than stock, but just not sporty enough for me. Does anyone have a reasonable solution to my dilemma? Are there aftermarket resonators that would tone it down slightly without doing what the stock resonators have done. I live in SoCal so the cats have to stay on. I like a bit of the popping/crackling on decel and overall louder volume which is what the Roush's provided, but just too much of overall.