Product information "VHM EXHAUST CONTROL ADJUSTABLE SX65 WITH SPRING"
Ideal when using a different exhaust system. With this adjustable exhaust control, you can gain power over the entire rev range. With the 2-stage spring, you can easily adjust the opening time of the Powervalve with the screw. The first stage of the spring allows the Powervalve to open very easily for better throttle response. The second part of the spring keeps the Powervalve fully open to obtain the maximum exhaust gas flow. The VHM Powervalve plates are made of high-quality aluminum.
Setting the opening time is very easy
The solid carbide Powervalve plates fit solid carbide cylinder head (AA33112), solid carbide Powervalve base (DA31181) as well as the OEM cylinder head and Powervalve base.
