Thats the problem the tracks been there for so damn long its not funny, the people move/build around the track & know its there & then bitch about the noise.
There for stuffing any chance of anyone being able to use the track for what its ment for RACING...
But as Michael has said it is easy to make a car exhust quiet & still have just as much flow as a full open bore exhust, just a few more dollars & thought need to go into the systems set up....