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Tuner? Prerunner setup, on 39's mph way off

1K views 8 replies 7 participants last post by  AZPRO4X 
#1 ·
Hey guys,

I have prerunner setup on my titan and am curious if any benefits would come from a tuner and if so which one is best?

I need get my speedo accurate again bc my tires are 39's and I also am curious if it will help improve power/efficiency at all withy my CAI and JBA shorty headers?

Thanks!
 
#3 ·
Uprev is the best tuner you're gonna be able to find. Comes with a hefty price (about $800). People with more shallow pockets prefer the BullyDog GT which is a lot cheaper. You can get a used one about $250 from this site. Just get a 40415 or 40410. It works on 2005-2014
 
#6 ·
All of the people here are correct, but I would like to verify that the BDGT will adjust your speedo.
 
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#4 ·
If you have shorties, get uprev. But to get the speedo right you'll need the hypertech speedometer calibrator
 
#7 ·
Some 4.56 gears would be a good start with 39" tires.
 
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#9 ·
If you want a whole rearend call Az Differentials they make awesome setups.
 
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