2007 Mercury Grand Marquis Performance Chips & Programmers

Reviewed By john f (Stratford, CT) Reviewed for a 2010 Mercury Grand Marquis —12/14/2013 6:34 AM

Did download without any additional changes yet. Performance has increased. Also sounds better. Very easy to do.

Reviewed By kenneth h (rudy, AR) Reviewed for a 2009 Chevy Silverado —9/27/2016 7:09 PM

I have never had a tuner before and this was so easy after reading the forum several times. It tuned the Silverado with much better performance. I haven't drove it much yet but it has improved gas mileage by 1 mpg and much better performance and was so easy to install. Thank you

Reviewed By Doug D (MILAN, MI) Reviewed for a 2012 Dodge Challenger —9/14/2016 1:26 AM

Great tuner for a quick canned tune hp boost. I also love the data monitoring, logging, and code reading functions. All around great product, and as everyone says, "it is the best bang for your buck."