FRESCO Raw Expansion Chamber Steel for Yamaha YZ250

The Raw expansion is made of thick sheet steel. This feature provides greater protection in the most exposed parts to damage and maintains a good sound to the exhaust system.

• Optimized development to reduce bulk and keep the expansion pipe very close around the engine.
• For the Enduro version, the expansion softens the engine output without penalizing the maximum power.
• Compatible with the original silencer.