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Against this thread's advice i had a muffler delete done. It sounds nice at WOT but at idle when the car hasn't warmed up fully, it sounds awful. Like rattling the interior loud.
I'm wondering if instead of going back to the stock muffler and modifying it, I could just add a Helmholtz resonator to the piping in the rear to achieve a somewhat similar effect?
That's essentially what modifying the OEM muffler does right?
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