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Best Programmer To Buy To Change Tire Size


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#1 07GMCSLT

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Posted 16 July 2011 - 01:30 PM

I have 22's on my 07 gmc nbs and want to buy a programmer to change wheel size to fix my speedo? What is the best one for the money?

#2 Matt_

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Posted 16 July 2011 - 01:32 PM

Wheel size has nothing to do with the speedometer.

Tire size matters... are the new tires taller than stock? If not, you don't need to program anything.
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#3 07GMCSLT

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Posted 16 July 2011 - 01:40 PM

I had factory 17's now i put 22's with a 305/45/r22 and yes the speedo has changed. I checked it with gps and its off by a quite a bit.

Wheel size has nothing to do with the speedometer.

Tire size matters... are the new tires taller than stock? If not, you don't need to program anything.



#4 KMGZ400

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Posted 16 July 2011 - 01:52 PM

get a superchips tuner, very quick and easy to use

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#5 Matt_

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Posted 16 July 2011 - 06:29 PM

I had factory 17's now i put 22's with a 305/45/r22 and yes the speedo has changed. I checked it with gps and its off by a quite a bit.

Wheel size has nothing to do with the speedometer.

Tire size matters... are the new tires taller than stock? If not, you don't need to program anything.


Yeah, the tires you put on are about an inch taller than stock.

Best tune to get is the Blackbear tune. But if you want a handheld, next best option is the Superchips Cortex.
When Hell Freezes Over, I'll Ski There Too!!
Sig550x200_zpsfce041b6.jpg
2007 Jeep Commander 5.7L Hemi: Pics Here
2008 GMC Sierra Denali AWD (SOLD):Pics Here
2005 1500 Crew Cab. 8" lift w/37s (SOLD): Pics Here

#6 black03silverado

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Posted 17 July 2011 - 09:44 AM

get a diablosport predator or trinity really great product and easy to use
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#7 MorrisGray

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Posted 22 July 2011 - 08:27 AM

Where do you all buy these and what is a "good price" on these items?




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