If you want noise and some top end power - AEM.

If you want a cool looking intake that doesn't lose any midrange but doesn't gain as much top end as the AEM (and isn't as loud, has decent gains) - J's.

If you want a good all around intake - Comptech Icebox.

If you want the BEST intake - Mugen.

*Best = non-custom intake that the general public can buy.

Y'all have to remember - its best to tune when you change i/h/e and especially internals. The ecu doesn't just adapt to the best possible output when you add bolt ons.