Run Flat (RF) versus Non Run Flat (NRF)

[Rover]

Apologies if RF vs NRF is a dead horse subject. If yes I appreciate if you post a link to the info I seek. TIA
So I was out throwing the GT around in sport mode on some twisty roads today and thinking it was holding the road pretty good.
But I couldn't help but wonder if premium NRF tires would improve the grip and ride over the factory RF tires.
I put Michelin Pilot Sport 4s on my Z4 and was thrilled with the improved ride and grip.
The car in question here is a 2017 5.0 GT with stock 235/50ZR18 Perelli tires.

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[Cory S]

RF tires suck. Period. DWS,Pilot SS, etc non RF tires are a HUGE performance gain, like you have seen already.

 

[Rover]

I'd like to hear what NRF tires other owners are running on their cars. I'm currently running the original square set of 18" Perelli

 

[LetItRide1978]

I didn’t realize Mustangs came with run-flats. I have a 2018 3 series and I’ve replaced 3 tires over 16k miles if that tells you anything. And one tire on my previous lease just before I turned it in. I appreciate not having to stop on the side of the road to fix a flat but the run-flats are just too damn delicate. They don’t handle potholes well and seem to pick up nails/screws easier than regular tires.

I’d recommend the Pilot Sport 4S, unless you need all season tires, then go for the Pilot Sport A/S 3+. I have enjoyed the stock PS4S tires on my Mustang.

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