Saw a 235 with dual exhaust and it looked like the owner had cut a hole for an 1 1/2(?)exhaust pipe about 2 inches long to which he'd then welded a 2 inch diameter exhaust pipe and run it back and under the usual set up to the muffler. It looked clean and sounded good. Unfortunately, I didn't catch his name etc.. Anyone here done something similar for a 216? How? And any problems etc.?