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famoroso famoroso is online now
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Join Date: May 2015
Location: San Francisco & San Diego CA
Posts: 2,314
Quote:
Originally Posted by Canada Kev View Post
I did that when I changed my muffler. Still had the cat/pre-muffler on, but it was exceedingly loud and sounded like ass. Mighta been different at high RPM under load, but idling, not so great...
Did you have a cat on, or a pre-muffler?

Here's a vid of first cold startup with a Dansk pre-muffler and the Bisimoto Pulse Chamber muffler (without sound arrestor). On the one hand, a cool lil' piece of kit and on the other hand... a glorified muffler delete.




And for grins, here's the unit at shutdwown...



It's fun in a super juvenile sorta way and super lightweight, but won't be on for long. I have an M&K Active Exhaust pre-muffler en route. I'll settle on a final muffler choice after I have that installed.
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911 M491 / M470 coupes:
1987 GP Wht / Blk "Apollo"
1987 Gemini Blue / Blk "Gemini"
1989 GP Wht / Blk "Vents"

Last edited by famoroso; 07-03-2020 at 10:20 AM..
Old 07-03-2020, 07:26 AM
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