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#1
07-30-2002, 02:52 AM
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NHV reduction for 92 400e
I've noticed that my wife's 92 Q45 has superior sound damping. It's especially noticable on the highway. I find that once I exit the freeway I need to turn down my stereo quite a bit. I was wondering if anyone has added dynmat to their door panels in order to lower noise levels. Are there any other tricks?
Tom 
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#2
07-30-2002, 02:43 PM
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There is already a Dynamat-like material in there, as well as a wool "blanket" (for lack of a better term) in there too.
What kind of tires are you running? Might be a BIG contributing factor 
__________________
"If God had meant for us to walk, why did he give us feet that fit car pedals?" Sir Sterling Moss Michael 2014 E63S Estate 2006 SLK55 1995 E500 1986 Porsche 944 turbo
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#3
08-01-2002, 02:10 AM
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Right now I have Pirelli P6000s (205/55/16). There are quite noisy but I have too much tread (and they have a cool looking tread pattern) on them to justify a switch. Ironically when Pirelli launched this tire they claimed the unique tread pattern was specifically designed to reduce road noise. I do like the way they handle. Do you have any tire recommendations? I've heard good things about Yokohama DBs.
This "wool" you mentioned; is it adhered to the noise insulation on the inside of the doors? I’ve previously applied multiple sheets of Dynamat to a Miata I once owned. There was a noticable difference in noise reduction after applying the second layer. I was thinking of doing the same for my 400e.
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