Is there a noticeable difference from the 91 to 93 octane APR chip?
#1
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Can this be done on an older chip without ECMS. I just need to purchase the programs to be added, or is it s different chip altogether.
#2
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code he had. talk to APR about the update. i'm sure it can't cost much at all. you can probably just mail the ecu in and have it updated. if you have access to 93+ octane, go for the latest!
#6
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long term effects to doing it this way. From what I understand a gallon will get me to 93. How much of an HP increase is there?