My advise to u is to do a research first before buying or u might get sembelih on the price.
I'll tell u my experience finding a replacement Bosch O2 sensor for Innovate Wideband.
Checks with various sellers revealed that the price range for the same item starts from RM280 to RM500 apiece.
I also found out that VW also uses the same Bosch O2 sensor, but if u buy from a VW dealer the quoted price is RM900. Of course, I choose the seller selling for RM280.
If u are willing to order from overseas & know the Part No., u can order from here;
OxygenSensor.Net home page