Old Reader, and guy...Here is my question, Stage one is in box

, waiting till Sat. to do install, I have played with my car a little and was wondering should I put the car back to the way I got it or leave the "upgrades" alone. Not that I did much, ex: I am sure I could leave the "Baffles" from the air-box to turbo OUT! But what about the MBC, and the "Black-Line Trick (that I got off this form-THANX) When I installed the MBC- I blocked the brown line( to the turbo) and replace it with the "other" line form MBC ( the other of course is vac.) Please any help would be GREAT!! Thanks for all you HELP!!!