[E36Ron]

Can anybody report their experiences regarding performance reprogramming of a 1996 M52 ECU?

I have seen tools for sale that claim to improve performance, acceleration and economy by a simple plug-in-and-press-a-button series of actions. They claim the device will retain, and allow reinstall of, original factory settings (apparently needed if the car goes in to the dealer for any reason).

But this black box stuff all kinda feels pretty scary to me.

Any comments?

Thanks,

-- Ron

E36Ron