I put a straight through glass pack muffler in a few months back at first the cabin noise was ok but the last few weeks the drone had become too much for me. I remember I put the round weighted piece that was on the stock exhaust back about where it was on the stock pipe. Yesterday I moved it to behind the muffler. Drone gone cruising at 55 on a local limited street and cabin was quiet. First pic was where I put it second is where it was.

 

Is the black sooty looking stuff on the pipe spray paint or soot?

As the clamps are different between the pics, did you upgrade the clamps while moving the weight?

 

X2, wondering the same thing.

 

Pipes were painted clamps were not touched first pic is rear end of muffler second the front of the muffler. Muffler is welded to exhaust exiting the rear clamped in front.

 

Any chance you can snap a picture of the part-stricker inside the rear bumper cover?

 

What?

 

Sorry, somehow I posted this on the wrong thread

 

That’s interesting. I can’t tolerate exhaust drone.
When I was 12 Dad put dual Cherry Bombs on his new ‘66 Mustang, turned down in front of the rear end. After a 500 mile round trip riding in the back seat my head was exploding. In high school friends all ran Thrush, Purple Hornies, etc. I ran stock big block or turbo mufflers, never a loud muffler then nor since. I’m fond of slightly loud mufflers, on someone else’s vehicle 😏