Dave - First off, I find the noise level in Winged1 to be akin to "music to my ears", especially at WOT (wide open throttle), but that is certainly a personal preference for everybody. I know that several PNDC members have applied noise-suppression material to the cargo shelf, and also behind the "back wall" panel between the rear cargo area and the engine compartment. The cavities in the underbody can create the effect of a bass resonator, so packing those cavities with sound absorption material can make a significant difference. One member added some material to the trunk area under the carpet, and noted that the resonance from there was improved. Also, several folks on the DML have talked about noise coming up from the shifter area, and through the center console in general, leading them to adding sound proofing there as well. The rigid underbody is a very effective "noise transmitter", so if anything that generates vibration is touching the underbody, it will be carried very well into the cabin. Take a look for anything touching or riding on the fiberglass which could generate noise. You just have to keep adding stuff until you reach the level of "acceptable noise". Or ... turn up the stereo another notch or two. Toby Peterson VIN 2248 Winged1 --- In dmcnews@xxxx, "Dave Sontos" <dsontos@xxxx> wrote: > Although I enjoy driving my DeLorean more than anything I can't stand the noise in the passenger compartment. I've gone so far as to completely rip out all of the carpet and put down new 1/4" layer of closed cell sponge rubber and new carpet padding. This made a vast improvement on the road nose but the engine noise is still unbearable. > > What other noise abatement controls have other owners done to reduce passenger compartment noise?