Reviewed By Andrew S (WICHITA, KS) Reviewed for a 2009 Ford F-150 —11/23/2014 12:47 PM
Works great needs better operation instructions. Can't change program with engine running.
Reviewed By eric h (CHULA VISTA, CA) Reviewed for a 2009 Infiniti G37 —7/15/2014 4:19 AM
Downloading the program from personal computer to the tuner was a little complicated, but the set up in the vehicle was easy. It does make a difference in performance, at least with shift points and acceleration are smoother in performance mode, which could be less desirable if you prefer the harder feel of acceleration pushing you back in your seat with a stock G37. Upper end torque is increased, giving more passing power at higher speeds. Overall it's a good product