Thread: M5/M6 vs 550i dinan stage 2
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      04-28-2014, 11:04 PM   #53
Schnell_1
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Drives: 2013 F13
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Originally Posted by mr-karim View Post
for 91 octane use +2.25 over stock
for 93 octane use +2.5 over stock
Old firmware? If yes, then 3 PSI with new firmware, correct?
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