Boost Leak

So I was replacing my fuel filter tonight and I noticed that a tee connector on one of my vacuum lines was blown apart. That could kill off some fuel mileage couldn’t it? Also I blew the gas out of the old filter and it was black so it was definatly time to replace that.

On a second note, seeing as how I don’t know what all is done to my car what would I look at on my MAF to see if its the stock one or not?

http://img159.auctions.yahoo.co.jp/users/1/0/4/5/meisterjapan-img600x450-1115558965p1010014.jpg

i found this one one yahoo auctions japan, this is what a stock one should look like

yep thats the stock one