Description
If you’re running a high-revving machine that demands both peak performance and compliance with sound regulations, the FMF Factory 4.1 RCT strikes the rare balance between unrestricted power and track-legal noise levels. The patented Resonance Chamber Technology doesn’t just muffle your exhaust—it intelligently manages airflow to maintain full power across the entire RPM range while dropping decibels without compromise. Built for riders who refuse to choose between dominance and legality, this system combines aggressive engineering with practical versatility.
- RCT resonance chamber technology
- Maintains maximum power output
- Internal ducting optimizes flow
- Factory Forward Engineering design
- Centralized mass distribution
- Crash-resistant construction
- Includes PowerBomb header
- AMA/FIM sound compliant
- 94db QuietCore insert included
- Spark arrestor integrated
- Tool-free tuning tip swap
- Four-screw rear cap access
- Aluminum construction
- Made in USA
- MPN: 045650
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