I slapped some Dynamat in all the doors and the tailgate on my '97 850R wagon when I bought it used 6 months ago. I don't think it make a huge difference in "air-noise" at high speeds. What I did notice was that the stereo sounded much better. The clarity was even more defined than beforen addition, some of the rattles disappearred when the mat was added.

Not a bad product, but I can't afford (time and money) to put it everywhere in the wagon. When you do intall, watch your fingers on the sheet metal...lotsa cuts if you're not careful.

Anton
Las Vegas, NV

Your problem is more a matter of wind noise than road noise. In any case, dynamatt will help, but will add weight, and is VERY expensive. There are cheaper alternatives out there that work exactly the same. It's called Rammatt, I believe. I'm sure I'm getting the spelling wrong, but that's what it's called.

Good places to put it are up against the fire wall, in the doors, under the carpet. But that'll only do so much. The majority of high speed noise is from the a-pillar and front windshield edges.