Quote:
Originally Posted by goodhart
Also, there is really no decibel reading needed for exhaust in MN (doesn't mean you can't BS them into thinking it is needed  ). If it crackles and pops at all (which is completely up to officer discretion) it is by law illegal (which pretty much any aftermarket exhaust will do). |
The "crackles and pops" is part of the muffler law, statute
169.69 but is only a part of the story.
The actual overall noise law for a greater than 2 wheel vehicle, under 10,000 lbs is defined by the Minnesota Pollution Control Agency. The MPCA statute
7030.1060 provides a nice chart for your reference:
This noise rule is the very reason we are legally able to drive rally cars between stages on public roads without noise violations.