Tires...couple questions

So I was at work yesterday using the tire balance machine and hit a jackpot. There were (4) used khumo ecsta tires sitting there after being taken off the previous night...supposedly they came off a 95 cobra.

So I took them and stacked them up by my bay, they are size 255/45/17 and have about 7/32" tread left; about 70% in most cases. I'm running 245/45/17 BFG KDWS right now that I got back in winter.

1) I know the sidewall hight is slightly taller on the khumo's, but I cant make any changes to my custom tune on my SCT X3. Would it be enough of a difference to throw the speedo off?

2) Has anyone run these tires? Are they worth swapping? I should be able to run them till atleast october, probably even november. Hardly ever snows here in VA.

mustang50v8 said:

however the real question is this....ecsta what, Ecsta MX, ASX, 711? they call alot of their tires ecsta so it is important to know which one it is before anyone can make some sort of call.

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The full name on the tire was Khumo Ecsta Supra if it helps.

I wouldnt buy khumo's...but these were free to me. Saw the size and I grabbed them. My speedo is already off a few MPH so I wont worry about it too much. Just need to know if they are worth swapping now. The sidewalls on my BFG's are hard as a rock and a complete ***** to mount.