i know there are amillion questions about this, im not asking what does an intake do or anything stupiud, i just have a injen intake i am debating selling, i just like the sound of them really, but i know the intake pipe from the turbo to the maf makes it run leaner when the pipe is smooth. I just do not see a need for it. Im wondering does most the hp gain when tuned with an intake come from the maf adapter and cone, or the smooth pipe from the turbo to the maf. If you dont know do not reply to this.