No, 1996 and 1997 used the same impeller.
From what I have seen with Seadoo only the 155mm pumps came with the swirl impellers but I could be wrong. It is also been damaged and someone just bent and ground the leading edge which isn't good for holeshot either.
Either way it isn't going to make much of a difference if you already have a Solas.
The reality is it is a jet pump and isn't going to get much better off the line pulling a tube as an impeller just doesn't have the grip of a prop.
If you only pull a tube with it then I would sent it to Impros to have it repitched for towing but you will get less top end and it is still going to slip and cavitate under heavy load.