M3 02 sensor in m20

[Marcus33]

may be a stupid question but..

I have a new O2 sensor from an e46 m3 sitting on my shelf, (11781743994)(17781405325),

I want to swap out the o2 sensor in my 325ix to see if it improves my gas consumption...

Can i use the M3 one ? i'm assuming that the connector would be different, but if i swap the connector, would it work?

[vpilarrt]

Should work as long as its a narrowband (4 wires). The E46 transitioned from narrow to wide in '03 or '04 IIRC.