FMF 044157 PowerCore 4 Spark Arrestor Exhaust System for Yamaha TTR50

The FMF Racing PowerCore 4 S/A complete exhaust system combines superior performance with spark arrestor convenience for the Yamaha TTR50. This complete system includes both the muffler and header pipe, providing a direct bolt-on upgrade for 2006 and later models.

Key Features:

• Hi-flow core design with increased surface area for superior sound absorption while maximizing exhaust flow
• Extruded aluminum canister construction for lightweight durability
• Stainless steel mid-pipe with precision MIG/TIG welding for strength and longevity
• Space-age internal packing material for optimal performance and sound control
• U.S. Forestry approved spark arrestor with maintenance-free stainless steel screen
• Lighter, stronger, and more powerful than stock exhaust components

This PowerCore 4 system delivers improved throttle response and power gains throughout the RPM range while maintaining a manageable sound level. The integrated spark arrestor makes it trail-legal for use on public lands, eliminating the need for aftermarket spark arrestor installation. Complete with all necessary mounting hardware for straightforward installation.