Never used Zeitronix wideband 02 meter
 

sells for 279 on zeitronix site http://www.zeitronix.com/Products/zt2/zt2.htm

bought it for the turbo kit i was building and never finished the kit, sold just about everything else, just forgot about this little gem. will take 220 shipped

as for feedback, my name is Jeremy on accordinglydone.com. i have a feedback of 2 positive, 0 negative on that site, and a rating of over 50 on ebay as yarbs0929