If you choose the Giannelli exhaust manifold, your Yamaha will have an increase in power of up to 6 hp and an additional torque increase, not specified by the manufacturer. However, this requires the removal of the throttle, which leads to the expiration of the type approval.
Giannelli protects its exhaust manifolds extra with a layer of clear lacquer, which is applied directly before finishing. According to our experience, even with the greatest care and the highest quality of paint, fine cracks can occur in the paint layer during transport. We therefore recommend that you touch up the manifold with heat-resistant clear varnish after receiving it.