Whats the performance differences between wet and dry no2 kits? Whats cheaper? Is one better for the car then the other? Who sells the best kits? I got a STi.

Wet would be better on the STi. Or you could look into the computerized Venom kit

ldelaysionl, I made a post about a turbo upgrader, have you ever heard about that? Wheres the venom kit located at online?

http://www.coximport.com/venom/nitrous.html

Expensive but worth it IMO.

They don't have it for the 04. Its available for the Subaru Impreza 2.5l but for the years 96-01.