need adivce.... 2000 civic si
 

Recentley my engine light came on, and i had it hooked up to a computer, and i was told it was my o2 censor, but this light went on after i installed my magnaflow high flow cat, if it is the o2 censors, where can u guys recomend a place where i can get them cheap, and installed for a really good price, because i was priced $248 per censor, and that is a majour rip off.

Affilate page would be a good start. Thanks.