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Discussion Starter · #1 ·
I was thinking of buying the sct tuner for my 07 mustang, but i'm fairly new with all of this, and my car has previous owners, so I have no idea if he put in any mods in the car, and I don't know how to find out which gear ratio I have...is there a simpel way to find out my gear ratio and if I have any mods on the car?
And what's with that "select octane requested"?
Any help would be much appreciated!
 

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The octane is just what type of fuel you use, 87, 89, 91, 93, or whatever they have in your area. With a stock engine you really don't have much need for more than an 87 oct tune. And by stock I mean no forced induction or nitrous.

A lot of info on mods has been discussed and posted about around the forum, so click the "Search v" button on that top tab and enter what you want to look for, ie. tuners, cai, exhaust, etc


 
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