found a ecu on ebay that the guy says he can set off of previous tunes. what do you guys think of this?? heres the link. http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&ih=006&sspagename=STRK%3AMEWA%3AIT&viewitem=&item=160083142872&rd=1&rd=1