I saw 2 on ebay which personally i thought might be ok, 1 was 55x14x65 and the other was 45x23x65 which size wise oiuld be ok for the lower section of front bar hole section on a micra, only issue i can really see is piping route.. i know someone was using s13 intercooler on the side beside the radiator. it all comes down to personal preference though mate as if you like the look of a big intercooler over something smaller that might flow better also there are numerous jap imports such as silvia, skylines and lancer gsr's which have smaller side mounted ones to gtr and evo which have bigger front mount ones then compared to wrx and gtir with top mounted.