Reviewed By john f (Stratford, CT) Reviewed for a
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 George S (Brownsville, OR) Reviewed for a
—4/22/2015 8:09 PM
Speedometer is dead accurate with 37x12.50r20 Nitto Trail Graplers on my 2013 Ram 2500 6.7L Cummins.