Hey I just read the e/h/i faq and it was great but i have a quick question . I have a 1999 4 door civic sedan. I want to convert it so I can put an exhaust system on it. I need a ex catback exhaust, ex headers, and a downpipe. Well i cant seem to find a downpipe is there anyway you can help me find one and can you seen if these will work?

catback
http://cgi.ebay.com/ebaymotors/GReddy-Honda-Civic-EX-92-00-EVO-2-Exhaust-System_W0QQcmdZViewItemQQcategoryZ33630QQihZ015QQi temZ8060381538QQrdZ1QQsspagenameZWD1V

headers
http://cgi.ebay.com/ebaymotors/Megan-Exhaust-Header-CAT-Honda-Civic-88-89-90-91-00-D16_W0QQitemZ150166010591QQihZ005QQcategoryZ33631Q QssPageNameZWDVWQQrdZ1QQcmdZViewItem

I have an aem CAI already.
Thanks in advance I really appreciate it. Oh and about the 02 sensors is it as easy as just extending it or do i need to buy something from 02simulator? Will that be all to complete the exhaust system?