Teflon Coupling between the header Pipe and the Cannister Muffler. Inside diameter 25mm.
Canister Muffler TRC-60-L
Four chambers expansion muffler designed for engines of cylinder to 60 ccm-longer version.. Orientation of output - rear.
These mufflers are used by the IMAC - Free style World Champion Marek Plichta with GP 123 engine. It is very popular between top pilots from 120ccm class.