[SD987]

The noise change you heard was only coincidental.

Did you test the affect before hand and after with an SLM (Sound Level Meter) at the least (if not a DSLM or ISLM)?

2kBoxster doesn't tell us whether he took a shower after desnorkeling and/or q-tipped his ears. But because working on the car will generally make one dirty I'm going to jump to the conclusion that he did shower and may have had a decrease in ear-wax-density (I'd like to see density measurements in kilograms per cubic metre).

How about the affect of the psychology of desnorkeling on the actual experience? Did 2kBoxster conclude that the sound was indeed "throatier" over 4000 RPMs because his wife was pushing him for a "sportier" sounding exhaust? Human perception of loudness follows a logarithmic scale. Most people will find the change of 3dB just perceptible. How much was the change induced by desnorkeling? How about the sound pressure? relative to say a reference sound pressure of 20 micropascals?

I'm sorry 2kBoxster, but we're going to have to dismiss your post, but thanks for contributing !! And what the hell would your mechanic know about engine management systems? He only works on Porsches for a living, which hardly qualifies him as an expert on Porsches.

Now where's that 987 guinea-pig?....