Reviewed By Dan L (MANCHESTER, MD) Reviewed for a 2015 Ford Mustang —8/30/2017 9:12 AM
No noticeable power increase as a bolt on. With a tune, should see in excess of 10hp to the wheels.
Reviewed By Gregory J (Shasta Lake, CA) Reviewed for a 2003 Ford Mustang —2/19/2017 9:59 AM
The problem I had was the instructions are really thin, they should tell you to install the filter to the lower chrome piece first thing . After I did that it was easy to assemble. The performance has been excellent, It says right on the box 25 horsepower and I believe you actually get more and I am very happy with it .