FMF Yamaha Factory 4.1 RCT Slip-On Exhaust | Part No. 79-40633/275142/18211407

Upgrade your Yamaha’s performance game with the FMF Yamaha Factory 4.1 RCT Slip-On Exhaust (Part No. 79-40633/275142/18211407), engineered to deliver unmatched power gains and a premium riding experience. Designed exclusively for Yamaha models, this slip-on system slashes backpressure by up to 40%, unleashing hidden horsepower while maintaining reliability on dirt or road tracks.

Crafted from lightweight titanium and stainless steel alloys, this exhaust slashes unsprung weight by 2-3 lbs compared to OEM systems—improving handling without sacrificing durability under high-heat conditions. A high-flow RCT header maximizes airflow efficiency, boosting low-end torque by 8% and mid-range punch by 12%, perfect for aggressive acceleration or technical off-road sections.

Distinctive factory-inspired styling integrates seamlessly with Yamaha’s stock aesthetics while adding aggressive race-bred DNA—no awkward fitments here. Easy bolt-on installation requires minimal tools, making it ideal for weekend warriors or professional tuners seeking quick upgrades without sacrificing performance potential.

Why Choose FMF Over Competitors?
| Feature | FMF RCT Slip-On | Competitor Brands |
|————————|————————–|—————————|
| Weight Savings | Up to 3 lbs lighter | Average 1-1.5 lbs |
| Power Gains | +9-12 HP at peak RPM | +5-7 HP |
| Sound Quality | Aggressive street/legal | Muffled or overly loud |
| Build Quality | Lifetime warranty | Standard 1-year warranty |

Whether dominating motocross circuits or carving mountain roads, this exhaust ensures every ride feels sharper and more exhilarating than ever before—backed by FMF’s unmatched legacy in professional racing engineering. Experience precision-built performance that elevates both track times and everyday adventures alike.