FMF ALUMINUM FACTORY 4.1 RCT SLIP-ON W/STAINLESS ENDCAP

All new incorporating the latest in Resonance Chamber Technology. Patented core shape lowers sound level while maintaining maximum power output. Patented canister shape increases internal volume for more sound absorbing material. Patented chamber design to enhance and refine exhaust pressure. Factory Forward Engineering centralizes mass and is less prone to crash damage. Tuned exhaust with optimized core specifications for each application. Innovative rear endcap for simple installation of tuning tip inserts or spark arrestor. Stainless Steel midpipe for strength and durability. Includes spark arrester and wash plug