Retune for tire size?
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Retune for tire size?
Anyone know if I'll need to retune when going from 275/40/17's all around to my new 15" setup, 165/80/15 and 275/50/15's? Just wondering how bad speedo will be off, and if it will affect shifts points and such.
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I just found a tire calculator and the 17's were 25.66, 15's are 25.88 ..guess I'm good, sorry for the noob question, didn't think it through.