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Discussion Starter #1
Just curious as to whether or not you have to get a tune to cancel any warning lights if you re-gear? I'm debating jumping to a 4.10 for the 33's now, but would rather not have to tune it just yet.
 

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OGMFS Member
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Not sure if it will throw any codes but your speedo and shift points will be off, effecting overall performance. A retune is definaley needed. Tire OD and gear ratios are the first things asked for, atleast by EFI Live when opening up to tune.
 

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It took me a couple months to get my retune but going from 3.08s to 3.73s on my 2010 didn't throw any codes.
 

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Well the speedo and odo did get thrown out by 10mph which made for a 90mph speed limiter. Other then that it was just the annoying factory tune crap. All said I don't regret my order of things, but if I could have got a tune sooner I would have.
 

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hella cute n shit
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4.30's or 4.56's for 33's. :imo
 
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