SVO MkII
Well-Known Member
Yes, by law, you cannot sell a vehicle capable of exceeding the speed rating of it's tires. I believe at least some of the 17" tires on base Mustangs had an "H" rating.At speeds of 120+ the radiator is getting so much airflow that the mildly increased size will not have much affect. It is most likely due to the tires.
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