Description

New at logs and saws, we are now  selling the Undaunted range of custom exhausts.

Aerospace-Grade Performance Exhaust System for STIHL MS 363 and 400.1 Series

Enhance power and improve engine cooling with this precision engineered exhaust system designed for the STIHL MS 400.1 and ms363. Made from lightweight 6061 T6 billet aluminum, a high strength aerospace alloy known for excellent heat dissipation, the one piece muffler cover optimizes exhaust flow while helping to keep your engine cooler and extend component life.

Proudly manufactured in the USA and backed by a lifetime warranty, this exhaust system delivers lasting durability under demanding conditions.

Includes

• One piece muffler cover CNC machined from 6061 T6 billet aluminum
• Stainless Steel Intermediate Plate
• Spark arrestor screen with aperture size compliant with USFS specifications
• High Temperature Gasket Made in the USA
• Longer top screws with vibration resistant Belleville washers

Dyno Proven Performance
Tested on a completely stock saw with no modifications other than the muffler cover. Results showed a 7.82% increase in horsepower and a 6.5% increase in torque.
Performance gains will vary depending on the saw and the level of modification.

Installation Notes:

• Apply thread locker on all mounting screws for secure, vibration-resistant assembly
• Post-installation tuning is required for optimal performance

Warranty
Lifetime warranty covers defects in materials and workmanship under normal use. Excludes misuse, neglect, or unauthorised modifications.