'99 GLi 1.6 Civic o2 sensor faulty

[Alpine]

Hi guys, I need your help / advice...

My '99 GLi 1.6 Civic's "check engine" light has been coming on and it's been diagnosed as a faulty o2 sensor. Problem is Honda wants $571 to replace it with new genuine o2 sensor from Japan. That's just too much.

Is there a cheaper aftermarket alternative available, and if so where can I source it from? How easy is it to swap out myself?

Really appreciate any help.

Thanks.

[2MPRS]

if you are in sydney you can come take my spare one for 30bucks lol

[Boznian]

Wow thats overpriced, take 2mprs's one or buy a new one off ebay

[Alpine]

Would this one fit my Civic?

http://www.ebay.com.au/itm/120529036742?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649

[grifty]

you can get brand new aftermarket for under $100

[eren]

isnt there 2 02 sensor's? find out which one first