Why would you need to retune your car just for different tires?Im running stock street tires that are 27" tall and when I go the track I want to have a set to switch out to, I going to get MTs that are 26" tall, is it going to hurt the car if I do not retune it to the proper size of the MTs while im at the track?
from what I understand the only reason to re-tune is for proper speedo calibration. can anybody shed some light on this for me?
Even if it does affect your speedometer it doesn't really matter if you just going to use them at the track.
No worries man, just get those Stickey Thompsons and let 'em rip!