I need to replace my O2 sensor 'again', due to code 9 (high volatge on 02S)...

quick question: Does it matter what the specific number/ model of the sensor is? or is it only a matter of how many wires it has?

I am not talking about the OEM fit of course, but universals....

I am looking at some Bosch universal 4 wires with the quick-connect thingy.....as the model number changes, so do the prices....but they are all 4 wires....so what is the difference? and does it matter?

thanks,

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1993 300E, 2.8 M104 .....