How can I tell if tuning has been done to my 2012 Mustang? - Ford Mustang Forum
 
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post #1 of 11 (permalink) Old 09-01-2013 Thread Starter
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How can I tell if tuning has been done to my 2012 Mustang?

I recently purchased my first Mustang, a 2012 Candy Apple Red V6 with a manual transmission. The previous owner had installed a Hurst billet shifter, Airaid CAI, and Flowmaster exhaust. The car definitely feels more responsive than the 2011 I rented a couple of years ago. Is there any way of knowing whether or not any electronic tuning has been done?


2012 Mustang V6
Airaid CAI
Flowmaster axle-back exhaust
Hurst short-throw shifter
3.31 gears
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post #2 of 11 (permalink) Old 09-01-2013
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If the car has a tune on it you should have gotten a handheld tuner, like a SCT or Diablo Sport with the car when you bought it.

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post #3 of 11 (permalink) Old 09-01-2013
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Quote:
Originally Posted by z28th1s View Post
If the car has a tune on it you should have gotten a handheld tuner, like a SCT or Diablo Sport with the car when you bought it.
yeah you "should" but unfortunately that is often not the case, I was one of those cases where the car had been tuned but the dealer did not give me the tuner, in fact the dealer swore up and down that it had not been tuned

A Ford dealer can read the program in the ECU and can tell if it has been reprogrammed (aka "tuned"). I had to do this with mine. They cannot tell you what has been done in the tune, only that it has been re-flashed.

If possible, the best bet is to get in touch with the previous owner and ask them. Unfortunately many dealers will not do that for you, due to "privacy" bull crap.

| 2010 GT coupe | Daily Driver with some Steeda and GT500 take-off stuff for the occasional track day
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post #4 of 11 (permalink) Old 09-01-2013
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better question, If his car has been tuned and for what ever reason he can not get his hands on it from the last owner.... what to do. You would have no Idea of what tuner was used, How would you get it back to stock if you wanted to , or with a VIN lock could you even add another tuner to changed things in it. like for gears , etc

2012 3.7
75MM TB
CA intake
3.31 rear gears
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post #5 of 11 (permalink) Old 09-01-2013
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Quote:
Originally Posted by kmf04040 View Post
The car definitely feels more responsive than the 2011 I rented a couple of years ago.
Could just be a 3.31 rear end in it. That's stock on some models or could be dealer installed even. It would make the car more responsive to the gas peddle. If it has a Ford tune from that, the dealer might still say it's stock.

OR, the rental was just a dog.
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post #6 of 11 (permalink) Old 09-02-2013
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From what I've heard, most rentals have the 2.73 gears. If your car has the 3.31 gears that could possibly explain it.
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post #7 of 11 (permalink) Old 09-02-2013 Thread Starter
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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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post #8 of 11 (permalink) Old 09-02-2013
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While it is still new to you, IF you bought it from a dealer, I would ask to get in writing if it has ever been tuned. If it has decide if the potential loss of wtty is worth giving the car back.

I ain't trying to start a Moss act war, just trying to inform the new kid.

2012 V6 traded in for a 2017 VW GTI.
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post #9 of 11 (permalink) Old 09-02-2013 Thread Starter
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Quote:
Originally Posted by Strange Mud View Post
While it is still new to you, IF you bought it from a dealer, I would ask to get in writing if it has ever been tuned. If it has decide if the potential loss of wtty is worth giving the car back.

I ain't trying to start a Moss act war, just trying to inform the new kid.
Actually, I have it in writing from the dealer that the remainder of the Ford warranty is in effect and I also had the computer checked - never been flashed. With only 13k on the car, I should be good for many years/ miles of fun driving as well as embarrassing the occasional import, whether it be Japanese or German.

BTW, the 2011 I rented was a V6 premium automatic convertible. My manual coupe should be quicker, but it is even more responsive than I would have expected. I am extremely happy with it.

2012 Mustang V6
Airaid CAI
Flowmaster axle-back exhaust
Hurst short-throw shifter
3.31 gears
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I've driven both and the 3.31 is a huge improvement over the 2.73. Enjoy!

2012 V6 traded in for a 2017 VW GTI.
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should be a little white sticker with the gear ratio on the rear end pumpkin

'Little Red'. 2011 V-6 Mustang. Automatic <acronym title="transmission">Trans</acronym>. C&L C.A.I. Ceramic Coated BBK Long Tube Headers and Catted Shorty X-Pipe. Magnaflow Street Series Axle Backs. 3.73 rear gears. GT 500 Lower Control Arms. JLT Catch Can. Axle Exchange Aluminum Drive Shaft. Steeda Watts Link. Several more mods...1991 F150 4X4 61,000 miles. Wifes car, 2014 Ford Edge Limited.
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