Akrapovic exhaust Yamaha YZ250F V-TUV386
02 · Data & docs

The facts.

Technical data
BrandAkrapovic
Part numberV-TUV386
FitmentYamaha YZ250F, YZ250FX and YZ450F (2025)
TypeOptional noise damper
Measured40.0 PS with the damper fitted (39.2 standard)
Torque25.3 Nm (25.0 standard)
Road approvalNot a road approval — it addresses circuit noise limits
DescriptionThe whole story▼

Unusually for a noise damper, Akrapovic publishes dyno figures for this one: 40.0 PS and 25.3 Nm with it fitted, against 39.2 and 25.0 standard. A damper that costs nothing in power is the exception rather than the rule.

Key Features

  • Optional noise damper for the 2025 Yamaha 250 and 450 motocross bikes
  • Measured at 40.0 PS with the damper in place
  • Torque 25.3 Nm
  • Fits YZ250F, YZ250FX and YZ450F of the same model year
  • Optional — comes out when the track does not require it

Reading the figures carefully

The numbers published against this damper are higher than standard, not lower. That is not the damper making power — it is the exhaust system it belongs to. Akrapovic measures the combination, and what the sheet shows is that adding the damper to the system does not give back what the system gained.

What Akrapovic does not state is the resulting decibel figure. For the Kawasaki equivalent V-TUV385 the target of 109 dB/A is named; here it is not, and we are not going to carry that number across to a different bike.

One model year

Akrapovic lists this damper for 2025 only. If your Yamaha is a 2024 or a 2026, check with us before ordering — the damper has to match the system, and the systems changed across those years.

Match the damper to the system

A damper is dimensioned for the outlet of one specific silencer. It is not a universal insert, and one from a different Akrapovic system will not seal correctly even if it goes in.

Article number

Akrapovic lists this damper as V-TUV386.

FitmentWhich bikes this fits▼
  • Yamaha YZ250F and YZ250FX (2025)
  • Yamaha YZ450F (2025)
  • For circuits with a noise limit
07 · Support

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