Exhaust Stihl MS 661 – Muffler Mod | Performance Silencer

Flow-optimised exhaust (performance silencer) for Stihl MS 661.

Advantages:
• Optimised exhaust routing for a coherent setup
• Robust design for professional and forestry use
• Precise-fit form – clean seating and reliable installation

Compatible with:
• Stihl MS 661

Installation notes:
• Prepare sealing surfaces cleanly, tighten screws evenly
• Functional check after modification (idle / throttle response / temperature)
• Use a new gasket if required

Note:
Please observe local regulations on noise / emissions / approval.