Salfelite is wavy. I had two replaced before I settled on one that I could accept. And, yes, they were happy to keep replacing it... But I think that may have had more to do with the fact that the replacements whistled above 60MPH.

If you do get their glass, be sure that the one they put in has the OEM style head gasket, or you may be hearing an unhappy tune.

BTW, I finally accepted a wavy glass because I figured it would be no more than another year or two before it needs to be replaced again and $1200 a pop for BMW glass is rediculous - even if I have a 0 deductible.

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2006 X5 Sport 4.4i