I would assume the ffv59 is a flex fuel vechical witch it is not. As far as the tuning is was a asking about I need to search the forum about what kinda of timing these things like I really cant do much better than stock because of the kr I get with 87. These things are turds lol.
Hey all what up. I hail from the southwest sode of ohio with my 05 z71. Can anyone point me in the direction for the tuning section. I have been learning the ways of the hp tuners but still on not very happy with my end results. I know the 5.3 in these things in stock trim are turds just trying...
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