Would the Po Po's be able to fine me for having too loud of an exhaust? I want to get a flowmaster 40 series muffler, too loud to be legal?

I really want that muffler, but I already have enough fines to pay right now

 

flowmaster 40 shouldn't get you in trouble, I have one on my car and it's not that loud. The loudmouth is a lot louder, but almost too loud. The flowmaster 40 does sound good though

 

Are there any certain decibal levels we have to be under?

 

40's will not get you in trouble. And yes if you are too loud (like driving a 1500 Chevy truck, will no muffler at all) you can get in trouble.

The loudnest prob varies location to location.

 

There is only one city I have heard of that doesn't have noise level restrictions on exhaust and it was out in the middle on nowhere.

I would search google to find what the noise level is in your area.

 

yes. Just let off the gas when they pass by.