Hello Gents.
I've been out of the Mini click for sometime now. I went to the dark side with my Mitsubishi Cordia Turbo.

So the Mini Has been sitting for some time now. I start and drive him every week or so. Anyway to my question. When I first got my 03 Cooper S there was not alot of pickings out there for performance parts, now Ive noticed there is alot of parts and makers out there, so now Ive desided to give him some attention.

At the moment I have a ProMini CAI. From what I've read, the Alta shows the most HP gains. Can you guys agree with this? If so, do you think its worth going from my ProMini CAI to the Alta?
Thanks guys......