Weird new noise...
 

So after getting gears installed and messing with the tune just driving around if I go somewhat WOT I can hear kind of a weird noise that only comes when it is about to shift. Its not that loud just a weird noise that almost sounds like a short burst of air. Kind of hard to describe... Never heard it before the tune when I started messing with shift pressures and times. Do you think it is harmful if driven for long periods? I am planning on going to track this Friday not to necessarily do runs but to meet n greet some peeps from the forums here so maybe I could let them hear it as well on Friday to get a better idea of the noise? I don't know I have always been rather anal about any squeaks and creaks on any and all vehicle I have ever driven. Or maybe it's just a little pride in what I have.. Anyways any thoughts/suggestions would be appreciated.

what is "messing with the tune?"

besides the sound, how is the transmission shifting? is it normal?

normal shift just weird air "pffft" noise