I sent in my P-120 ECU to JetCat for the 5.0X upgrade---I was informed by Jason that I am receiving an even newer upgrade version...5.1E!!! The newest ECU flash 5.1E enables you to not only get the great acceleration from the 5.0X but you don't loose any of your info when a newer program version is flashed to the ECU...In the past when you had the ECU flashed you lost all of your stats...Not any more!!!

Kevin

OK, so if you go to the 5.0X or 5.1E version of the ECU, what sort of improvement do you get in the engine's acceleration?

Bob

Bob, as I understand it the major improvment in the throttle response time is above half position and above. You also do not have to reclibrate your temp probe after having the ecu updated.

Don

Bob,

Throttle response time is almost halved with the ECU versions 5.0X and later from the older ecu's!!! DEFINATELY worth the small price of $25 to have the ECU updated!!!

Kevin