Tune/ change tire size

Victor750

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I currently have the factory 275/65/20. I'm wanting to switch to 35 12.50 20. My question is will the change in size affect my shift points or anything else with the tune? Thanks in advance.
 

TLyons90

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It will have a slight difference in your "gear ratio" but not huge. It would be smart to have the tune updated for the tire size which will also help with any wrong on your speedo.
 

Victor750

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It will have a slight difference in your "gear ratio" but not huge. It would be smart to have the tune updated for the tire size which will also help with any wrong on your speedo.

Are you talking about going in on the tuner and changing size?
 

Stokt

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Your stock tires are 34" tall, so you're talking about a pretty minor change. This is especially true when you consider that many "35s" are less than 35" tall. I didn't notice any difference when I made the same change.
 

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