Welcome, I started with the Airaid and am now waiting for an INJEN. I had the INJEN on a previous car and got great performance. For my headlights, I went with BFXENON HID package and also got the HID foglights. They are easy to install and the quality great. For the Exhaust I have purchased the loud Mouth II but haven't installed yet. Oh if you have an M6 go with the Barton short throw the absolute best for the money.
Have fun with the Mods, I still think the LS is the best option out there !
