Ok, since I opened up the exhaust I decieded to get a new air filter for it as well.
I have narrowed it down to two; HKS Super Mega Flow air filter, and K&N F.I.P.K.
Both, as far as I know, replace the air box, and retain the MAS. The K&N filter gives a 7.7 hp gain, and I dont know what the hp gain is for the HKS. SO my questions are: Has anyone used either one of these filters? Did you like them? What are the pros and cons of each? What's the hp gain for the HKS filter? Does the fact that they are "wet" filters hurt the MAS? Will either of them fit in future intake pipe upgrades? I'm hoping to order one of them on Monday, so any help as fast as possible would be great.

i used to have the hks aircan/filter for my dsm. they were ridiculously overpriced.
the foam filter elements flow a little more air, but they dont last long and if it starts to deteriorate, you will be sucking bits of foam into your engine. i have been running a k&n filter with no aircan for a couple years now and despite not having as good of flow rates as the foam elements(when new), it flows better in the long run, it is reusable, and it is cheaper

the "wet" filters only hurt your maf if you are using a "hotwire" maf... something like a GM MAF...
the factory 1G MAF is a Karmen Vortex MAF and is not effected... not 100% sure on the 2G MAF

you can use a K&N dry though if you are using it with a GM MAF

Thanks for your help Scrapin_frame and Gsxracer80! After reading what you said about the HKS filter I will be getting the K&N for sure. Gsxracer80, thanks for the info on "wet" filters and MAS. Thanks again for the info and best of luck with your rides!

If anyone else has any more info on "wet" filters and MAS while using one on a 2G turbo, please by all means post it.