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The S3 Exhaust Valve Controller will make you discover and enjoy your engine by controlling your exhaust valve easily and with your own hand.
Its operation is totally intuitive and suitable for any type of rider, situation and terrain. You will notice a VERY LARGE change in engine response on the spot, being able to vary it in seconds even with the engine running without tools. 100% safe thanks to the reinforced protection in the lower part.
- Control and play with the exhaust valve settings without tools
- Modify the engine behavior according to the conditions and to your wishes
- Easy, quick and safe access from the outside with your hand, without stopping the engine
Includes an O-ring, ready to be used
The development of this product respects the philosophy of the S3 product that seeks to offer the driver more quality, design, practical value without forgetting its Racing spirit.
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