Quote:
Originally Posted by Leingod
I barely get 19mpg right now. This'll be interesting. First i've heard of older models being more responsive to tunes compared to later years though. I'll have to research it a bit. If true, this'll be even more fun!
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Don't misunderstand me - what I'm saying here is that for example my car (2014) really didn't see as significant a gain to whp from the tune, partly because my ECU had already self adjusted to accommodate for the mods.
If you were to put the mods on your car and just drive with them, your 2009 ECU would adjust a little bit, but apparently not as much. So your tune will be a much bigger factor in eventual output.