Picked up an 03 c5 z06 with the general g-max RS's (255/40/17 and 285/35/18). Been doing some searching to see what is out there for info on longevity, likes/dislikes, and how people find they perform compared to other options. These tires are slightly more narrow (10mm) than stock but only 1% shorter, so not too far off the stock diameter/circumference. So far I am quite satisfied with the grip and control they are providing but was curious to hear other people's thoughts that have run them and how they perform compared to other tires/wider options. From what I can gather these tires are a good value for the tire and are at a lower cost than other options out there. So far have not had traction issues when I have needed it, and they seem to grip well all through 1st and 2nd without excessive wheel spin. I love the look of wide tires but have found out fairly quickly there isn't a ton of options for stock sized tires in the 17/18" combo. If anyone had any experience or insight on this topic I would love to hear your perspectives.