i think JaysGN has one listed for sale, but you can do what i did to get by for a while- i took all the braided covering off and put a stainless band clamp around the joint- it doesn't leak at all. when i was trying to figure out what to do, i took the pipe off and discovered that all the exhaust gasses have to flow thru a 1 7/8" bottleneck at that flex joint. i'd bet that just welding a piece of 2.25" pipe in there in place of that joint would be worth some serious power.
i then wrapped the whole pipe with some exhaust pipe wrap just to keep things cooler under there.
