FMF Factory 4.1 RCT Yamaha Aluminum Sport Exhaust with Stainless Steel Midpipe

FMF Factory 4.1 RCT Aluminum Slip-On Exhaust System (Yamaha)

For Yamaha riders seeking a precision-engineered exhaust solution that combines cutting-edge technology with unmatched durability, the FMF Factory 4.1 RCT Slip-On Exhaust is a game-changer. Designed with Factory Forward Engineering™, this system redefines performance by relocating the muffler closer to the engine for optimized mass centralization, reducing rotational inertia and enhancing handling on the track.

Innovative RCT Technology
At its core lies FMF’s patented Resonance Chamber Technology™ (RCT), delivering a perfect balance of power across the RPM band while maintaining a deep, aggressive exhaust note. The shorter overall design minimizes crash vulnerability while retaining maximum efficiency—ideal for competitive Yamaha riders prioritizing both speed and reliability.

Premium Construction & Weight Savings
Crafted entirely in Southern California from aerospace-grade titanium alloy (specifically blended to FMF’s rigorous standards), this system weighs just 7.1 lbs., offering significant weight reduction compared to stock units. The natural aluminum muffler with carbon end cap not only enhances aesthetics but also contributes to its lightweight performance advantage.

Key Features & Benefits
– Stainless Steel Midpipe: Durable and heat-resistant for long-lasting performance
– Rapid Tuning System (RTS): Quick adjustments for varying track conditions
– Included Quiet Insert (94dB): Meets noise regulations without compromising tone
– Screen Spark Arrestor: Ensures safety compliance during high-speed runs

Why Choose FMF?
| Feature | FMF Factory 4.1 RCT | Competitor Systems |
|————————|—————————|—————————-|
| Weight Savings | 7.1 lbs total | Heavier stock alternatives |
| Power Output | Gains across all RPMs | Limited mid-range response |
| Build Quality | 100% USA-made aerospace-grade titanium | Offshore manufacturing |

Perfect for Track Enthusiasts
Designed exclusively for closed-course use, this exhaust system is tailored for serious Yamaha riders chasing lap times and corner-carving precision. Whether you’re pushing limits at your local track or competing at nationals, the Factory 4.1 RCT delivers unmatched performance where it matters most—on the asphalt.

Upgrade your Yamaha’s DNA with an exhaust system built by racers, for racers. Experience the difference of FMF’s legendary engineering firsthand.