I've been toying with the idea of replacing my current sidepipes (a bit ugly, and very loud). I like the loud, but it would be nice to have a quiet, stealth mode option (I know, ear plugs are cheap, but hard to hand out to people as you drive by them in the neighborhood...)
I've seen a few "active exhaust" variable valve systems, that have a butterfly valve that closes at lower RPM to lower sound levels quite significantly it seems. They would for sure require some degree of customizing to work on a cobra, has anyone had experience with either of these, or something similar?
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