hey guys. I am posting this here and this may be the wrong place, but I have kinda pieced together an exhaust system. I got a 4" dp from a buddy and deleted the muffler, and put on a 4" tip. would really like to have a 4 or 5 inch system just to simply eliminate any back pressure prior to dumping money into a chip. I can't seem to find any shop that will sell me a 4 or 5 inch pipe from the downpipe back cheaper then I can get an entire system. If anyone has some 4 or 5 inch pipe laying around from an upgrade or wreck that they would be willing to get rid of I would greatly appreciate it. I live in Johnson city, but trips to knoxville are regular seeing as the new fiancee lives there. Thanks in advance.