Mufflers Dr.D 78-8408

Dr.D

78-8408

4-Stroke Race Silencer Tail Section Yamaha YZ450F 03-05

SKU: 237472

Mufflers


More efficient intake stroke.
The carefully turned steps in the system allow for a lower net cylinder pressure, which provides a crisper throttle response from bottom to top.
Dyno tested with a 3.6 horsepower increase at peak.
Manufactured from high-quality, 304-series stainless steel.

  • More efficient intake stroke.
  • The carefully turned steps in the system allow for a lower net cylinder pressure, which provides a crisper throttle response from bottom to top.
  • Dyno tested with a 3.6 horsepower increase at peak.
  • Manufactured from high-quality, 304-series stainless steel.
  • The muffler is constructed out of 6063 aluminum, lowering the overall weight of the system, and providing an aggressive, but pleasant, exhaust note.
  • Race silencer cannot be retrofitted with spark arrestor.

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