I don't know if anyone posted on how to remove the stock plastic i/c piping from the turbo to the i/c and i/c to the throttle body. But if you have tried this before, you probably know it's stuck on pretty good. The solution to this is to apply some heat with a heat gun or blow dryer. It will expand and slide off easily. Was replacing the upper I/C pipe with an aluminum hard pipe and Greddy Type S and figured this out. BTW the Injen plus Greddy didn't have a "gobble, turkey". Will have the video clip soon.