pitted of 3 of the four rims on my friends Eclipse GST within 6 months of buying them. He took the wheels back to the tire store that he bought him from and got a brand new set under warranty. Guess what... yep they are pitting again. I don't know about quality issues with other 5Zigen rims but the Typhoons are abolutely terrible. It's ashame too, because personally I think they look great. Oh well.