if you dont have the right tools id be more than willing to help with a cat back exhaust replacement job. i have a floor jack, jack stands, two ratchet sets and access to an air compressor and impact gun. i can definitely help you there so dont even worry about that

the only thing about headers is that it seems that they are a real b*tch to install. requiring
hours of work. i know my guy would do it for cheaper than any shop. that would probably be beyond the scope of my time constraints. i dont even think i would have the time/motivation to do my own (hence why i didnt buy any--perhaps one day).