There has been a lot already said about this subject. But yes it is a good bottom end pipe. Is it the prefect one for a stand up, who knows, no one else has made one to compare too. I have two skis set up with his pipe and they both really run well with this pipe. Jeff at WDK is the only one that I know of that has spent the time and money and worked real hard to come up with an alternative motor set up for a SuperJet. In my eye he is due some credit for this. The 66e motor kicks some major sss in a stand up ski. There is no way you could get a stock muffler set up in stand up ski, so there is really no way to compare the two. The OEM pipe works well in a sit down ski, but won't work in stand up. I know they seem expensive to buy but compare them to a new B pipe. A little bit more money and you have one. I would recommend buying one. Make sure he has then in stock and can ship once he gets paid. That is the key.
Top end, I have not gotten there yet. The ski just keeps going faster and faster, then I either loose control or chicken out and let up. Once you hit 50, to me that is fast as I want to go. My ski gets to squirly to find out. I think to much water is being forced through the pump at high speeds and back end moves around and then you are swining for your ski. It happens pretty quick. But you have all the speed you will ever need.
Dale
