The FMF factory and Six Days silencers (Made in USA) are top-performance silencers. The benefits:Housing made from high-grade, pressed, anodized aluminum
Factory performance characteristics
Hi-Flo exhaust gas routing technology
Long service life
Integrated bracket
Dynamically formed stainless steel end caps
Simple fitting
For a perfectly tuned and performance-optimized overall system, we recommend combining with the factory exhaust.