I finally got around to removing the AR pipes and installing the 2019 factory pipes with the front two baffles removed. When i put them back on i noticed that the holes in the rear baffles were at least 5/16” dia so i left them.

Once warm it runs well and the noise is so reduced that my ears are still thanking me. Video comparisons to follow.

2019 M3W Sold and is now in Las Vegas enjoying the showgirls :-)