Thread: Muffler Mods
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Jcslocum Jcslocum is offline
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Join Date: Jul 2012
Location: Eastern Shore. MD
Posts: 919
Quote:
Originally Posted by 175K911 View Post
Scott, back when I ran stock heat exchangers on my Carreras I'd modded the mufflers. But it does require cutting the top off the muffler to remove a couple of the baffles inside. I would also add a 3 or 4" stainless tip too. No dyno numbers to substantiate any improvement but the butt dyno seemed to think it helped a bit. Changed the tone to a deeper rumble without any resonance at all, and without being too loud. I'd have to dig back about 20 years to see if I can find the drawings of how it was done though.
Can you just post about how big a hole you cut in the top to modify the baffles??

Or maybe even the drawings.
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Jon

1966 912
1976 911 3.4 Backdate Project
1986 944
Old 12-22-2012, 08:38 AM
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