I've had EFILive for quite some time, but when I got my Fifty, I originally didn't want to mess with the programming due to waranty, and later read that - at the time - the ECM locking prevented reprogramming. I was wondering what the current status is (the feature overview has a checkmark for ECM flashing), and whether there are some nice how-tos on what one can do to possibly optimize the parameters (back then, used a wideband O2 & the detailed document on how to do a speed-density programming for my LS1).

Thanks!