First, to clarify, the flow increase is due to the jumper, the higher voltage increases the pump speed. The jumpers are free, in the US we have them now.
The kit is for wide flow option and starting at the end of the year will be included in the box, it is the 6205.130 and 6205.200 at a much lower price and equal to the price increase of the pump including these items. I expect this to be available in November. This does not increase flow, it only diffuses it into a wider pattern.