Quote:
Originally Posted by DaleHeinz
Stock exhaust has an actuated exhaust valve which opens and closes when cold starting and going between comfort and sport modes. It allows comfort mode to be quiet and tame while sport and sport+ become louder with pops and gurgles. Dinan exhaust is open with no valve, which makes comfort mode louder, and some guys don't like the lack of stealth for a daily.
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Ah thanks for the info.
From my checking around, it looks like the Remus and the OEM M Performance have the option to keep the exhaust valve actuator, if I'm reading it correctly.