I wanted to get some input from some who have done it themselves or had someone else do it. I have an '07 ZZR600...getting ready to do an exhaust swap which includes a different style header. Do I do the work myself or would it be over my head?...I am mechanically inclined, know how to read directions, and I am sure I probably have the tools to do it...but would it be better to have someone else do it? I know I would still want to have someone tune it, but the big bucks are spent on the install. Thanks for any input. Be safe.