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I opened another thread regarding this but when I drive in Eco pro mode both exhaust valves are open and my m-perf exhaust sounds awesome and burbles all the time. Unfortunately, as backwards as it sounds I don't get them same experience in sport mode. Is there anyway to code for both valves to open? I know there are some other work around a but it's my understanding that they will leave behind ghost codes that can be removed.
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'13 328xi M-Sport
Black Sapphire Metallic, M Sport, Technology, Lighting Package, DHP, Harmon Kardon, Sport Auto, Heated Front Seats
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