2014 Mustang GT - Original Pirelli Tires - Dry Rot ?

I have 11,700 miles on my original tires. Performance is still great, but I have noticed some cracks in the tread area. ( Now I cannot say enough that the current guidelines for tires is to replace them at about the 8 year interval. (regardless of mileage) However it is tough for me to give up on tires with only 11K miles ! ) And, yes I should be driving the car more!
I have added a picture that should show a vertical crack between the two tread blocks. (Actually, the picture looks worse than up close.)

Have any of your had a similar issue with Pirelli tires ? Any recommendations as I start to look at replacing these tires? (For those of you that have been driving your Mustangs like you should.)

Thanks guys, for the responses. I have not driven the Mustang since I saw the cracks. Will finally shop for tires this week. I have always had good luck with Michelon tires and will probably go that route.

89ripper,

You will probably be OK, just make sure to check for these vertical cracks from time to time. Like you, I have always viewed Pirelli tires as being of good quality.