i just got the bully dog gt tuner for my car. and it fest smoother at the top. my only concern is warranty as well. so i plan on un-installing it from the ecu. returning to the stock file 3GY3B.
im going to cal nissan and ask what it would take to get the nismo software and have it under warranty. not even mentioning i had a previous map lol. ill just say my battery died and thats why the ecu looks re flashed