nevermind RTFM !
DIY here:
http://www.pyspeed.com/category-s/588.htm
This is one big fat pipe! and i can see why/how it has more volume.
Here are some pics i took and the rest are here:
http://public.fotki.com/joekim1113/c...-envychareger/
Planning on installing this weekend as i JUST put in my AA v1.5 ECU after all my mods. Im going to let the ecu learn for a few hundred miles and then throw on the charger probably sunday or early next week