Silly Question!

[SidewayZ-s14]

Hey guys, picked up an n62 maf and want to put it on, but just had a quick question. Will i see any performance decreases or increases by changing the maf? I was under the impression that i would have to get a tune in order for it to take its full potential, but will it run poopy without getting a tune?

Thanks.

[dOMEmE]

no tune = poopy
tune = not poopy

[SidewayZ-s14]

no tune = poopy
tune = not poopy

Ok so if i slap that n62 on, will it run just as good as the stock maf or will it actually run poopier?