Reviewed By Mark H (LAS VEGAS, NM) Reviewed for a 2007 Mazda 6 —3/22/2013 11:19 PM
This was a good purchase for my 2007 Mazda 6i. It took a while to figure out the program but once I did, I felt a good difference in performance. Great value so far. I'm not too sure about better mpgs yet either.