Akrapovic
AKRAPOVIC S-Y4MET15-CIBNTA Yamaha WR450F / YZ450F (2025+) Full Exhaust System "Evolution Line" (titanium)
AKRAPOVIC S-Y4MET15-CIBNTA Yamaha WR450F / YZ450F (2025+) Full Exhaust System "Evolution Line" (titanium)
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Full exhaust system for Yamaha WR450F / YZ450F by AKRAPOVIC.
The flagship of the Akrapovič exhaust system range, used and tested by our top factory teams in motorcycle racing. It’s simply the finest exhaust system available.
Each model is unique and dedicated to maximizing the engine’s performance, while reducing overall weight for optimized overall handling of the motorcycle.
It is made entirely of titanium. Exhaust systems meet FIM noise limits, feature a more durable welded bracket and titanium end cap.
☘ Means that such product meets the USAD Forest service Standard for spark arresters FS5100-1
SKU: S-Y4MET15-CIBNTA
🏆 This product is intended for racing vehicles used only in closed-course competition
⌚ Please note that this is exclusively made product and may take up to 15-20 days for production
| Unit | Stock | Akrapovič | Max gain |
| Max. power kW | 41.3 / 9800 rpm | 41.8 / 9850 rpm | + 0.8 / 10350 rpm |
| HP (m) | 56.2 / 9800 rpm | 56.9 / 9850 rpm | + 1.1 / 10350 rpm |
| HP (i) | 55.4 / 9800 rpm | 56.1 / 9850 rpm | + 1.1 / 10350 rpm |
| Max. torque Nm | 46.2 / 7750 rpm | 46.1 / 7700 rpm | + 0.8 / 5800 rpm |
| lb-ft | 34.1 / 7750 rpm | 34 / 7700 rpm | + 0.6 / 5800 rpm |
| Weight kg | 4.1 | 3.38 | - 0.7 |
| lb | 9 | 7.5 | - 1.5 |
| % | - 17.6 | ||
| Volume dB | 114.9 / rpm | 115.3 / rpm | 0.4 |
| Inst. time min | 90 |
APPLICATION:
Yamaha WR450F (2023 – )
Yamaha YZ450F (2022 – )
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