Performance Muffler Cover – Fits Stihl 880/881

Aerospace-Grade Performance Exhaust System for STIHL MS 881 & MS 880

(Fits only saws equipped with the factory two-piece muffler)

Increase power and improve engine cooling with this precision-engineered performance exhaust system for the STIHL MS 881 and MS 880. Precision CNC machined from lightweight 6061-T6 billet aluminum, a high-strength aerospace alloy with excellent heat dissipation, the one-piece muffler cover improves exhaust flow while helping reduce operating temperatures and extend component life.

Proudly manufactured in the USA and backed by a lifetime warranty, this exhaust system is built to deliver exceptional durability and long-lasting performance in the most demanding conditions.

Outlet Direction Options

Facing Bar means the exhaust outlet points toward the guide bar side of the saw.

Facing Recoil means the exhaust outlet points toward the pull-start side of the saw.

This is strictly an operator preference and has no effect on performance.

Compatible Models

• STIHL MS 881
• STIHL MS 880

Fits only saws equipped with the factory two-piece muffler.

Includes

• One-piece muffler cover CNC machined from 6061-T6 billet aluminum
• Spark arrestor screen with an aperture size compliant with USFS specifications
• High-temperature gasket, proudly made in the USA
• Complete hardware kit
  • Longer mounting screws
  • Vibration-resistant Belleville washers
• 0.5 mL Loctite® 243 medium-strength threadlocker

Installation Notes

• Apply the included Loctite® 243 threadlocker to all mounting screws during installation.
• Torque all fasteners to the values specified in the installation instructions.
• Re-torque all fasteners after several heat cycles.
• Post-installation tuning or recalibration is required for optimal performance.
• Professional installation is recommended.