Help deciding tire size

[Mustanggt21]

Hello everyone. I currently have a base 2018 Mustang GT. The car's stock tires aren't gripping too well. I am stuck on which tire size I want to go with. I can buy a pair of used performance pack wheels which have 275s in the rear or I can go aftermarket and have 305s in the rear. I want a tire that will provide grip, but not damage the half shafts or any other part of the car. I plan on putting michelin sport 4s tires on the car. Another question, are the half shafts upgraded in the performance pack mustangs? Thanks.

Sponsored

 

[Angry50]

half shafts are not upgraded. if youre going with MPS4S you wont notice much of a traction difference between 275 and 305, its about looks and preference. but will be better than the pirellis

 

[Mustanggt21]

will there be a significant difference between the 235s and the 275s traction wise?

 

[Angry50]

will there be a significant difference between the 235s and the 275s traction wise?

significant is strong word but in theory yes going to 275 is a good % increase. but you would really tell a big difference from the pirelli to the michelin. in my opinion after 275 width there is diminishing returns. but a wider tire does look cool and wide at lower pressure in theory gives more contact patch

 

[Mustanggt21]

I agree a wider tire looks cool. I think I will go with used performance pack wheels because its cheaper and provides good grip. Thank you

 

[Hashbrownn]

I vote for 305.
275 with Michelin Pilot 4S is not enough for rear grip and I spin rear tires all the time, but I have 3.73 gears and 6 speed manual

 

[Mustanggt21]

I have 3.55 gears with a manual if that helps

Sponsored