Tim From Cleveland

I am filling out the form at Bama Chips for a C&L CAI and they are asking for the calibration code, Full Tire Size, and Axel Code. Where can I find this information?

Also when selecting the custom tunes what are the differences between 93 Performace, 93 Torque, and 93 Race?

AlloySixxer

Calibration code is a 4 digit number under the hood on the ECU(I think). It's a white sticker in front of the battery.

Tire size should be on the tires...Ex. 235/55 ZR17

Axle code is your gears which should be 3.31 on all stock mustangs except the 05 GTs which are 3.55

Most go with the three tune combo

87 Performance(to use in case they can only get 87 gas or are going on a long trip)

93 Race(all around awesome performance)

93 Torque(a little different from the race tune, better low end)

grampa_stang

Only order 93 oct if it's available in your area. The code is on a white sticker, under the hood, passenger side next to the fuse box.

shoeys08dkcandygt

and if you dont know what gears you have, there is a white sticker on the back of the rear diff.

rcj2000

I have a 07GT and it same stock with 3.55 not 3.31 so that is not always true

shoeys08dkcandygt

in 07 ford made it an option to get the 3.55 on all gt's. think it was a $150 option. then for 08's made it a $300 option and only made them available for the premium versions.
so yes the OP might want to double check the sticker on the back of the diff if he doesnt already know what gears came with the car.

onederful100

check the door sticker for the gear ratio code, the whole sticker is decoded in the manual.

BG 3.31 non-limited slip
CD 3.55 limited slip
CG 3.31 limited slip

solaratomic

I thought all manual transmission cars came w/3.55, autos with 3.31 and a variation from this was an option. Ex GT/CS comes with 3.73 w/ manual...GT cars that is

rcj2000

CT/CS comes with 3.55 or 3.31.....

i think the 3.73 came into play on the Bullitts or Shelby GTs