Super Jet Quick question for superjet guys

Location
macomb
Ok. I'm new to Yamaha jet ski, been doing kwaks for years. But I have a quick question. I'm buying a Solas magnum pump from a guy off a 2003 superjet. Will it fit my 1991 superjet?
 
Location
macomb
I'm buying a used one for $520 plus a Solas big hub impeller, Solas stainless wear ring. Should I use the driveshaft out of the 2003 as well or just use my 1991 driveshaft?
 
Location
macomb
Does a Solas pump assembly (when matched with the right impeller and pitch for your engine, ext). Does it offer a lot more hookup, bottom end, and faster speeds?? Obviously not a huge top end gain, but if it doesn't significantly decrease cavitations and improve bottom end pull and hookup, what would be the point in spending the big bucks on it.
 
Does a Solas pump assembly (when matched with the right impeller and pitch for your engine, ext). Does it offer a lot more hookup, bottom end, and faster speeds?? Obviously not a huge top end gain, but if it doesn't significantly decrease cavitations and improve bottom end pull and hookup, what would be the point in spending the big bucks on it.

D. All of the above

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