if you still have the original muffler, put it back on. simple.
a customer bought in one of these stamped sort of baffles (it had a large end plate) to jam into the short megaphone on the ducati below.
i squashed and welded the leading end shut, wrapped most of it in sheet metal and flattened the stupid 4 or so remaining open louvres down quite a bit, and this was the difference it made. baffle in, then baffle out.
desmodog is a professional in exhaust design, so he knows what's he's talking about. you need another muffler.
a customer bought in one of these stamped sort of baffles (it had a large end plate) to jam into the short megaphone on the ducati below.
i squashed and welded the leading end shut, wrapped most of it in sheet metal and flattened the stupid 4 or so remaining open louvres down quite a bit, and this was the difference it made. baffle in, then baffle out.
desmodog is a professional in exhaust design, so he knows what's he's talking about. you need another muffler.