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acme911 acme911 is offline
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Join Date: Nov 2011
Location: Monterey, CA USA
Posts: 393
Garage
Hi, I have a 3.0 too. Had my muffler shop make caps for the lower holes. After tuning the car and driving it for awhile I purchased some motorcycle baffles and inserted them through the previously capped lower holes. Created a little back pressure, lowered the decibels and a created a really great sound!
Overall very glad I went this route.
In the future I might install electric cutoff valves and have them actuate through the ECU.







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'74 911, Steel Wide Body Hotrod, 3.0, Jenvey ITB’s, AEM Infinity, KW V3's, Eibach Sways, JWest shifter and other stuff.
Old 02-03-2019, 10:57 AM
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