Thread: 87 vs 89 custom tunes
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Old Fri, April 15th, 2011, 10:42 PM
RGSMDNR RGSMDNR is offline
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Default 87 vs 89 custom tunes
hi all,

Ive got custom tunes made for 89 octane. Would it make a huge difference if I ran 87 octane on these tunes?
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