"5 star tuner" on a V-10?
Does anyone have any personal experiences with something called "5 star tuner" on a V-10 that they could share, or any other computer tweaks worth knowing about?
Forum Discussion
The manufacturer sets the vehicle up for the best combination of performance and fuel economy. Tunes will generally increase performance (and that's arguable) at the cost of fuel economy. Additionally, you may not even drive the way needed to realize any gain, for example wide open throttle. They may also void any warrantee.
