Nantucket Nine

[The Spaceman_imp]

BMW's "Acoustic Damper" it's a servo controlled noise flapper. Closes to keep the noise down for low RPMs then opens with the throttle. I took it out with the stock pipe for a bit more sound which made the stock muffler sound much better. Without it the Akrapovic can is a real head turner, just too loud.
Put it back in today. Just right now with a deep rumble.

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Well, the upside is the exhaust flapper-valve Suzuki installed on the new VStrom 1000 ABS no longer looks quite as ridiculous.