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2009 BMW S1000R - European Launch Picture 25 of 35

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Photo 25 of 35
Maintenance of the strictest noise and emission limits despite supreme engine power is ensured on the S 1000 RR by features such as an electronically controlled exhaust flap positioned upstream of the rear-end muffler, opening up the exhaust pipe to its optimum cross-section as a function of increasing engine speed.

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