I have not found that to be a problem...comparing speed to GPS, it is most always on the money...thanks for pointing that out as a point of accuracy. But but again not a big deal either way
I have a 19 Mustang GT PP1 Auto
Fronts 285/35/20
Rear 305/35/20
On P51 wheels
Not only do they fit but they cover most of the wheel opening and no rubbing or Speedometer corrections necessary
I have a 2019 Mustang GT PP1 with Active Exhaust and recently put Borla Switchfire on and man it sounds great! Absolutely NO DRONE...just great sounding exhaust! Actually it was quite a surprise!
PRICE: $1200 Picture with Member name and date attached...
Amer Racing Longtube headers w/HighFlow Cats - great shape for 2018-2020 Mustang GT
Ran less than 11,000 miles...excellent buy also includes the Cat sensor extensions