The OP says that he is having problems with a whine/whistle stating he has tried different traditional PVCs with no luck. I suggested the M/E Wagner because it's made differently than a normal PVC. My thinking it would solve the whine/whistle because it's fully adjustable to work on any engine without having to piece something together. I've found that most of the time but not always I have to get out the wallet to fix issues with these engines..lol
