Happened a while back but never had the time to fix it. Well it sounds really raspy right now after i had to run up a curb and scrape my exhaust . It's got 2 resonators right now.. one where the cat used to be and a much smaller one that's stock when i bought the car. When it was cold one day i saw exhaust leaking somwhere from the front but i have no idea exactly where it's coming from. Where should i go to get this checked out? or can i fix this myself?