Reviewed By Stephen B (Medway, MA) Reviewed for a 1999 Mercury Grand Marquis —8/17/2012 8:42 PM
A must have for your vehicle
Reviewed By Lawerance W (Vineland, NJ) —2/20/2015 6:39 AM
This performance chip definitely increased the horsepower by pretty noticeable amount. It's not going to do anything for mpg so don't get it for that reason. My 0-60 went from a stock 8 seconds to 6.7. I definitely recommend it.