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YAMAHA YZ450F 2020-2022 - Akrapovic Exhausts System- S-Y4MET15-CIBNTA
£1,316.00
Model Compatibility
- Yamaha YZ450F (2020–2022)
- Yamaha YZ450F Monster Energy Racing Edition (2021–2022)
- Yamaha YZ450FX (2021–2022)
- Yamaha WR450F (2020–2023)
- Fantic XEF 450 (2022–2024)
- Fantic XXF 450 (2022–2024)
Note on Later Generations: If you own a 2023 or newer generation of the YZ450F, this exhaust will not physically bolt up due to a total frame redesign and altered exhaust mounting paths introduced that year. Newer bikes require part numbers
S-Y4MET16-FDHLTA (2023–2025) or S-Y4MET17-FDHLTA (2026).
Key Performance Specifications
- Road Legality: Strictly not street legal. It is an un-catalysed, non-homologated professional system engineered solely for closed-course competition track environments.
- Premium Titanium Materials: The entire layout—including the header loop, conical link sections, internal cores, and outer muffler body sleeve—is crafted from lightweight, high-grade titanium alloy. It finishes with a heavy-duty, reinforced welded mounting bracket.
- Weight Reduction: Considerably lighter than the original factory-installed pipe assembly, cutting system mass to optimize high-speed transitions and side-to-side cornering agility.
- Performance Maximisation: Yields an extra 1.1 hp (+0.8 kW) at 9,900 rpm and adds 0.7 Nm of torque at 6,300 rpm, delivering smoother low-end snap and significantly crisper throttle response.
- Noise Regulation Compliance: Engineered featuring an integrated header expansion resonance chamber to smooth out exhaust pulses and guarantee full compliance with FIM racetrack noise barriers.
- Tuning Requirements: True plug-and-play track installation. The architecture adapts naturally to standard factory power tracking, meaning no mandatory ECU remapping or mapping adjustments are required out of the box