Quote:
Originally Posted by mikew2069
Turbos are louder as in you can hear the whistle/whine more. The mufflers are easily accomplished at any competent muffler shop and there won't be issues at the dealer as long as you set the JB4 to map 0.
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How exactly does a new muffler make the turbo louder (N55 only has one)? I have the MPE and I don't hear it at all. The F30 has ONE muffler, and you're dreaming if you think the dealer won't notice or care about the mods, especially the jb4. Speaking from experience here...