Sleipner Overview All / Upgrade Kits Propeller Upgrades | Pro Upgrades - Variable Speed | IPC Upgrades | All Thruster Packages AC Thrusters DC Thrusters Hydraulic Thrusters Electrical Components Spares Tunnels and Flanges Upgrade Kits Propeller Upgrades Pro Upgrades - Variable Speed IPC Upgrades IPC Upgrade kit 55-75(95/155) £153.38 Add To Cart Proportional Power Controller £2,146.59 Select Output PPC520 PPC820 Add To Cart Upgrade kit for SE100/120/210/240 £69.13 Add To Cart Upgrade kit for SE30/40/60/80/130/150/170 £69.13 Add To Cart Upgrade kit for SR80/SR100 £104.72 Add To Cart Q-prop upgrade kit SP55 £122.21 Add To Cart Q-prop Upgrade kit for SP125 £637.24 Add To Cart Q-prop Upgrade kit SP75/95 £234.24 Add To Cart Q-prop upgrade kit for SP155/200/220HYD £637.24 Add To Cart