I'm getting new pipes (haven't decided between the Staintune or Micron yet) and have a question. I know in an ideal world I would be re-jetting the carbs, but am wondering what the ramifications are for not doing it right away. Without re-jetting, would I notice an increase in HP, or would it just be louder? New pipes make the bike run leaner...is that putting undue pressure on the system? I know a jet kit is only $100 bucks, but I probably will need to hire someone to install it for me. Thanks in advance.