I had a Challenger SXT a few years back that I did a reso delete on & I was left with A LOT of drone. Now I have a 300c with the 5.7L Hemi & I want it to have a more aggressive sound than the stock exhaust has. I was wondering if there is a way to achieve this without doing a full cat back system? Can I just changer out the middle mufflers (assuming the resonators are at the rear) with the exhaust I want or is there more to it? Thanks!