07-21-2008, 08:27 AM | #24 |
Europhile
Join Date: Mar 2008
Location: SoCal
Moto: Aprilia RS125, Aprilia SR50 Factory, Aprilia Tuono, BMW Rockster, KTM 990 Adventure
Posts: 1,875
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Yep. They suspend the noise limits for professional racing. Track day bikes have to have stock mufflers on. Not even aftermarket mufflers with noise killing baffle inserted in, but stock mufflers.
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