WRX Top Mount Vs STi Top Mount

Howdi lads, just wondering as the title suggests-would there be any difference in performance in fitting an early model sti intercooler to a wrx? Car is running pretty much stock.

Sti intercooler is bigger, therefor more cold air going in.. But if your car is stock it will make little or no difference, like .5%-2% really not worth it. (some times if the intercooler is to big you can loose boost pressure making it worse) .. but if you get the car hopped up with a new turbo and injectors and stuff..then you should think about changing,,, 'Really if its not broken dont play with it',,
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+ you will prob need a remap @ €900-€1000 for your 1st map,,mayB even more,,
save a bit of cash and get some mods and a map for real power ,,

Cheers Ian, some good info there