Originally Posted by Burklow

+1

I scrape my undertray on my driveway occasionally. I just go over it VERY slowly. I'll either take it completely off or replace it with that aftermarket one with the hole in it for the front jackpoint.

Originally Posted by rodman

LOL, seriously if you want to get rid of 50% of that noise do what I did. Buy 4 cans of rubberized undercoating by 3M. Go to the self serve car wash and blast away any loose crap ect.. in the wheel wells, don't get freaking crazy and blast off the factory undercoating though, just a good cleaning.

Remove the wheels and apply the undercoating it light coats in the wheel well area being sure to coat everything even. Don't spray the hell out of it just follow the directions and apply enough coats to use up a whole can per wheel. It took me a few days between coats but it helps alot. You can even go ahead and do the underside of the car from the drivers seat back to the trunk paying close attention to the floor areas where your feet rest and under the trunk area. I did a light coat to the inside of the trunk area as the smell of the undercoating go's away after awile and hardens like plastic. Just be sure to re-install the trunk interior AFTER the stuff has dried for a week.

This will add about 5LBs to your cars weight though Hope this helps