I had KMS take a look at my 99 740i. I was reluctant to do so because I was told that I had a bad head gasket and was quoted the prices of $5000, $6000, and $9000 for repair. KMS took a look and called me right back with a diagnosis. It was not a bad head gasket nor did it cost me $5000-$9000. I was back on the road in a week. Pete, you guys at KMS are awesome!