has anybody berified any possible HP gains with ecm upgrades on550
I have heard that the gains can be quite significant ~45 HP, but I have hesitated since it isnt flash and they have to solder it on and the potential $$ hit if the engine hand grenades. Good along with a stebro and Tubi too. Good luck!
ferrarifixer is organising an upgrade on my ECU in the next two weeks. I'll post some before and after dyno's when done.
