Not to rain on your parade or anything, but most of that is in your head. Do you have numbers to prove any of it? There has been threads/posts about this, some guys are running close to 350 AWHP on the stock airbox still, with pics and dyno that show this. Just a thought though.
A good short ram wont give you problems. A cold air with no tune will give you problems. The only plus you'll get out of a short ram is that you'll probably hear your turbo spool from inside the car.
By disconnecting the battery to get rid of a CEL, you could be ignoring a serious problem. The CEL is there for a reason, not to be ignored. Get the code read and take care of the issue before it becomes an even bigger problem.
Just to clarify, I suggested the battery code clear because he said that the filter was improperly secured and popped off leading to a CEL. The ECU will often slip into a "safe mode" triggered by bad (low octane) fuel and not return to a regular mode untill the ECU is reset. It was this line of thought that led me to try the reset just in case the CEL was a "something is wrong with the engine and I am in a safer mode" message from the ECU.
Now that the light is back, agree that there is something that needs to be checked out. Pull the code and then go from there.
got the code.. its "system is too lean" ..fu## gayy. i talked to a couple of my Scooby friends.. and said i gotta get a tune ASAP cause i'm at Stage 2 now (headers w/ uppipe,3" downpipe,3" piping from turbo to exhaust, a shitty bov that flutters i think its doing compresser surge ,Pulleys, and Manual boost controller under the hood which i need to get rid of quick. i hear its dangerous to have on..
Actually guys.. i turned down my manual boost controller screwed all the way in.*sunday* but when i got home sunday i reset my ECU by unplugging battery for 10 minutes it went away for only a few hours**so i'm running at stock psi. CEL was on all day sunday and monday..and just today i took a quick drive to the store then my CEL is gone..hrmm yay!