THERE IS NO MUFFLER WITH THIS ENGINE. I DO MY BEST TO DISCRIBE THEIR CONDITION BUT WITH ANY OPEN BOX OR USED ENGINE YOU CAN NEVER BE SURE ITS IN PERFECT CONDITION OR ALL PARTS IN THE BOX.
The MDS 40 FS Remote Control Model Airplane, equipped with a lightly ran engine, would be an ideal choice for those interested in upgrading their hobby to a more advanced and reliable setup.