Ford Mustang Forum - View Single Post - How can I tell if tuning has been done to my 2012 Mustang?
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post #7 of (permalink) Old 09-02-2013 Thread Starter
kmf04040's Avatar
Joined: Sep 2013
Location: Westbrook
Posts: 6
If my math is correct, with the 225/65R17 tires and the roughly 2000 rpm in 5th gear at 50 mph, I would say I've got the 3.31 gearing. I can live with that, lol.

2012 Mustang V6
Airaid CAI
Flowmaster axle-back exhaust
Hurst short-throw shifter
3.31 gears
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