[dk79]

i cant be happier with the results of ess tuning stage 1 flash tune. the results are amazing. i have tried jb plus, racechip ultimate, ess etronic box and was not happy with any of them.

my car is 2013 650xi coupe.

my stock times by vbox and g-timer were 0 to 60 4.3 sec and 1/4 12.8 at 106 mph.

i sold my vbox to a member here last week because after calibration my g timer was as accurate as vbox on multiple runs so did not need it.

the posted times are on g timer coz i sold my vbox last week.

0 to 60 3.4 sec
1/4 mile 11.8 sec at 117mph
0 to 100 8.5 sec

and all this is on flash tuned car, otherwise everything stock. runs were done today in the afternoon, 80 degree heat and humid and i am 1500m meter above sea level.

another cool thing is that ess gives you OBD cable to change back to stock and tune and for future tune updates which can be done at home with laptop.
they update software twice a year. no no need to send in ecu no m-boot kinda thing needed.

flash tune is 1395+295 for obd cable.
first time you have to send dme in for flash after that everything can be done at home via laptop and obd cable. you can go back to stock when taking car in for service. it takes 10 mins to change from tune to stock to tune.