Ok so newb here. If I was to purchase a bolt on exhaust or Up pipe/ down pipe, do I need to upgrade anything else? Tune up? Chip upgrade? I'm trying to just understand the basics about upgrading your exhaust and I can't find any straight answers. I'm considering upgrading and don't wanna hurt my car. Thank you guys apologize in advance if I'm retarded and just can't find the right thread about this!