Is there a break-in period for Flowmaster mufflers?

I recently got a Flowmaster 50 series delta flow installed on my truck and I just wanted to know if there is a break-in period for it.


Does a less restrictive muffler have an affect on the truck's hauling and towing capabilities?|||about a 100 miles|||the muffler may get a little louder after a couple of hundred miles of driving but thats normal.





It wont affect the hauling and towing capabilities of the truck itself but you should have a little more horsepower and torque to help you pull the weight around better, and probably a little better gas mileage with a better flowing exhaust, just keep you foot out of it, flowmasters sound good so youll wanna hear it|||No brake- in period for the flow masters only glass-packed type mufflers will usually have a noticeable brake-in period , installing a less restrictive muffler in most cases will improve performance in all areas especially if the replacement was for a tired exhaust (high miles). only by changing the diameter of the pipe do you risk affecting its capabilities.|||I have had a Flowmaster on my car for about 2 years. I noticed mine was the loudest after about a year...And it hasn't changed much since then.