Originally Posted by Ænema
Aquamist is the best methanol setup you can get. The HFS3 and HFS4 kits are what most guys running Cobb use. PWM and integrated failsafes are great features to have. If you decide to go with another setup, FOR THE LOVE OF GOD STAY AWAY FROM WW KITS!!!
Since you're in Philly you have a couple really reputable shops available to do the install. VAC and Helix are both pretty close and do great work.
You dont NEED an exhaust for pro tune, but you can squeeze out a few HP with one.