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El Duderino
Join Date: Feb 2011
Location: The Forgotten Coast
Posts: 5,843
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Brian,
This is very interesting.
I have a OEM heat exchangers + test pipe + 1-in/2-out muffler on my ‘83. I measured 86dB at idle about a meter from the tailpipe. Any idea what your idle dB is for comparison? I used an iPhone app called “db Meter Pro”. Do you think this would tame the idle sound even with a 2-out?
What’s the rough opening rpm? Just wondering what the sound would be like at interstate cruising in 5th gear.
How would this compare to HP/torque gain from SSIs?
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There are those who call me... Tim
'83 911 SC 3.0 coupe (NA)
You can't buy happiness, but you can buy car parts which is kind of the same thing.
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