did u get my pm

sorry for the super late reply! i got mine off ebay for around $10-15 shipped. looked exactly liek this http://cgi.ebay.com/ebaymotors/O2-extender-Oxygen-Spacer-HHO-Wideband-Dry-Cell-Sensor-_W0QQcmdZViewItemQQhashZitem4aaa9fe821QQitemZ32069 0186273QQptZRaceQ5fCarQ5fParts hardest part of install was removing the old o2 sensor(b/c i have almost no tools lol). other than that works like a charm. definitely would give it a shot!

Hi,
I'm also having problem with P0420 because of the aftermarket cat. I need to get rid of it for the emission test. Do you remember where you get yours from? I searched all over but couldn't get to the right part.
Thanks