rob200970

Does anyone know how far from standard offset is ok to run. I am looking at changing my standard 2006 WRX wheels which are 17" with an offset of 55mm to a set of 18" rims, but all the ones I like seem to have a 45mm offset, and I dont know if this is too far away from standard. Please can someone help and suggest a maximum deviation from standard offset. Cheers.