I would highly recommend NOT buying this mass air meter. First off i did not notice much of a difference compared to my stock mass air meter. Second I bought this mass air meter in September 2012 and three months later I took apart my CAI system to do some work on my car and the mass air meter fell apart. The black plastic part that is connected to the mass air tube separated due to the melting of glue!!! I called the company the very next day and the guy told me that I could glue the part back together and when I asked him for my money back, he just told me that it is a used product even though it was the companies fault. Very disappointing and will never buy anything from Mac Performance again.