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 Donald M (BATON ROUGE, LA) Reviewed for a 2010 Toyota Tundra —2/25/2017 7:26 AM
Installed larger tires on my 2010 Toyota Tundra after doing so traction control was off badly when acelerating at speed it would imeditly kick in. After installing all is correct now and I'm getting 1.5 mpg better on gas mileage. 5 stars