N54 Tune Comparison Chart (Detailed)
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04-24-2011, 08:26 PM
Join Date: Apr 2011
Any info on the Turner flash?
Can anyone comment on Cobb or JBx before and after MPG? I would love to add 80hp but not at the expense of a crap-laod of MPG. Hoping there is no change unless you 'use' your right foot a ton.
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