I am planning on purchasing the Arrow PCM, but now am having second thoughts as I do more research. I found a old thread about the Mopar PCM for Gen IV's and there seems to be debate about running 91 when these PCM's are tuned for 93. I mostly track the car, so it will see quite a bit of high RPM use and possibly some hot days.
I don't want to just wing it either, as i'm sure it will run just fine, but I want to know for sure that it will acclimate to 91 octane without issue, even in hot weather.
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03-19-2015 #1Enthusiast
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Anyone running Arrow PCM with 91 octane?
Last edited by Rapidrezults; 03-19-2015 at 12:36 AM.
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