I'm not implying that the issue was your chips. I agree that there is probably other issues. All I know for sure is that the car runs much better on a 370 program. One of my buddies is buying the car with the knowledge that there is issues. My gut tells me that I have an early batch of the DW's. Oh and I had one of them flow-tested to make sure that I was sold 550's and not 370's.