Best Air Intake?

[H2Singh]

I searched the old discussion and cannot get a good grasp of which, if any, air intake system is a good replacement. I am looking for performance gains. Did the Corsa sport exhaust and now want an Intake system or simple air filter replacement.

WHAT has worked for you? Which one, what gains, how much and from where?

I know many of you will jump at the opportunity of bashing this discussion, please don't, if you do a search there hasn't been any great info on this for a while and something new might be out there???

To all productive feedback, thanks in advance.