I am really new to this forum and have found lots of info. I recently purchased a 86 Celica with 65000km's on Re-COnditioned engine for $4500. I am planning on putting on a full exhaust system, what size? 2 1/4 inch is most mentioned in these forums, I also want the cannon muffler, I am also planning on custom headers/extractors. Could someone please give me a rough estimate, price wise?