High temperature 3D printer extruder upgrade for the Flexion extruder. Sold either as an upgrade for current Flexion owners, or as a bundle with the standard Flexion kit. Allows printing at temperatures up to 290°C to allow Nylon and Polycarbonate. Improved PLA performance. Fast hotend swapping. Works with all the same printers as the standard Flexion kits. *Does not include stepper motor High-temp bundle for single extruder kits. Includes entire standard Flexion Extruder kit plus a separate high-temp hotend (barrel, heater block, nozzle). Spare nozzles are: 0.3, 0.5, 0.6, and 0.8mm. This works with the Wanhao Duplicator i3 and similar printers. You will no longer need your stock heatsink with this assembly.