Hello everyone I am back , so I got the Roush cat back for my non pp 2020 mustang GT for Black Friday last year. It sounds really good in my opinion and I love stepping on it just to hear it scream, I’m constantly using my paddle shifters because in low rpms it seems to be a bit quiet, sometimes I feel like it’s not loud enough. I want to get more sound out of it. I wanted to see if I can make it louder without touching headers or having to change exhaust, I would like headers but I live in...

Cat back Question!