i started playing with autocad to see if i could design my exhaust with it. I think its doable, i just have to crawl around and get some actual dimensions. here's a little bit i did of what i remember it looks like from the cat back.
haha, sounds like my metal fabricating book....he prefers to use full scale drawings to work from. I think im going to draw it mostly for ordering parts, and just because i want to. im not going to use it as a definite blueprint or anything.