ok so im having a tough time deciding which intake to buy for my '11 wrx hb. i know it will need to be tuned so im going to buy the cobb ap at the same time. i think im down to choosing either the cobb sf intake, or the aem cia intake. im looking for power more than sound although if i can get both that would be great. ive been reading that a bov isnt a great idea, so if i want to hear the turbo the cobb sf is good, but aem may gain more hp. any suggestions would be appreciated.
also.....what about the stock airbox? do i need an airbox at all or just the pipe and filter?
also.....what about the stock airbox? do i need an airbox at all or just the pipe and filter?