Honestly, no. The idea is good and the freestyle guys use them on stand-ups but seadoo really took their time to design their stuff. THere is not a lot of additional performance to be had out of a seadoo. For the $170 it just isn't worth the money.
Also, there is no top speed lost with aftermarket impellers. Back in the day with set pitch impellers this was an issue but since the early 90’s variable pitch impellers eliminated that.