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Originally Posted by brainblade
Wow thank you for the thorough answer. So the subtle noise i am getting when the throttle is depressed? it sounds like a high frequency cricket/grinding noise only when throttle is depressed albeit subtle. At first , i thought it was the speedo( like a gear spinning in cluster) but when we opened the hood it is pretty clear its from engine. I have heard the wastagte rattle from n54 engines and its not to that degree. Any specualtion appreciated.
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Some people who upgrade their downpipes get a waste gate flutter noise when you let off the throttle.
How do you know 2015 models are getting electronic waste gates? Haven't been reading on BP lately, did I miss something or is it a rumor / possibility?