The M-60-M is suitable for a 40-60CC engine.
The canister attenuates the sound well.
Canister Muffler JMB M-60M
Expansion silencer designed for engines of cylinder to 60 ccm is an enhanced version of the popular muffler M 60/60/270. The Muffler reaches very gooddamping while maintaining max. Engine power.
This Canister muffler is suitable for Shorter headers. Recommended headers length is 160-220 mm.