O/T but a CV joint Question

[saulgoode]

My buddy has a 00 Chevy caviler and when he turns the wheel it makes like a poping sound near the wheels. More noticeable at a stop. I said it was the CV's, he had it checked out and the guys said they were okay come back in 50k and we'll change them. I don't like to ride in the car because it doesn't sound good and my buddy doesn't care bc his car guy said it was okay. Could anything bad come from a worn CV joint?

Thanks