The cops should spare no expense in finding the douche that did the foam job.
While loud mufflers may be an irritant, what that idiot did is criminal here and now.
If the back pressure screws up the engine as well, he could be looking at a 1st degree felony.
I'm gonna reserve judgement until I hear both sides of the story.
LOL
Messing with another person's property is pretty fugked up, but there are some major ass holes in this world.