Cylinder head Kit double bougies 040.46.017.82.00 $229.32 KIT compatible with RR 300 2t MY 22+Contains everything needed to install the twin spark plug head on single spark plug RR 300s.It offers a more linear delivery and increased maximum power.The KIT contains: head, head gasket, 2 spark plugs, ignition coil, coil bracket, wiring harness and all hardware needed for installation. Add to cart