Description
The FMF Factory 4.1 RCT exhaust system delivers measurable power gains while reducing unsprung weight through a compact, centralized design that minimizes crash damage risk. By incorporating Resonance Chamber Technology both internally and externally, this system optimizes exhaust scavenging and throttle response without sacrificing durability. Built entirely from aerospace-grade stainless steel at FMF’s Southern California facility, it’s engineered for closed-course competition where precision and reliability are non-negotiable.
- System type: Factory 4.1 RCT
- Header style: MegaBomb
- Primary material: Stainless steel
- Construction: Aerospace-grade specs
- Technology: Resonance Chamber (internal/external)
- Design benefit: Compact length
- Mass centralization: Muffler proximity
- Crash damage: Reduced susceptibility
- Cap finish: Carbon
- Manufacturing: 100% Southern California
- Vehicle fitment: Kawasaki KX 250
- Installation: Bolt-on
- Use: Closed-course competition
- MPN: 042413
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