After seeing the results of someone having weight put on their stock exhaust to eliminate the famous 16-1800 rpm drone, I decided to get a set for my 4 inch exhaust. My first place of install was just behind the downpipe, like shown in the other thread. Result - very little if any difference. I then decided to move it to right in front of the muffler and got the same result. Does anyone know where the best place to locate the weights is? Otherwise I guess us all with the big exhausts will have to deal with the drone for now.:help: