[jimmyboy8301]

I would like to start doing some performance mods to my car now that i put on my wheels tires. I'm a little overwhelmed with all their is to do. What do you guys think would be the best stuff to start with. So far I have

SLP Loudmouth II
SLP Lid
K&N drop-in

I don't really want to do Nitrous so thats pretty much out of the question. What do you think some other good ideas would be? I'm guessing right now my car is in the low 13's. I'd like to see it in the low 12's. BTW the car is an A4.