Like Tom at JBP said. when replacing the main pump seal (behind the impeller) you have to remove the exit housing, the impeller nut & impeller. all these things can be done with the pump left in the boat, However, you need to find out why it failed. either the DU bushing in the tail housing is bad & is letting the shaft wobble or the bearings are worn. There really isnt to much to pulling the Panther out. Just need to support the back of the motor, remove the 5 bolts & the couple other connections. Its way easier to play with the pump on a bench, as they arent very complicated.
About gaining some speed from modding the Panthervator, It feels way quicker then before any mods, and quite a bit looser (not as much boat in the water) then it did with the stock exit housing on it. The friend I took with me during its maiden test, owns a pretty fast Carrera with a Berk, droop & jetovator. I wanted an outside opinion, so I took him for a 20 minute cruise, then I swapped the exit housing to see if you could feel a seat of the pants difference, let alone the visual differences in the tail. There was obvious improvement. The difference to me, from the initial install of the Panther Modified Exit housing vs the few mods I did to it, are like nite & day. I still need to go play on the water a bit so I can get a real feel of whats improved. soon as the weather gets a little drier up here in NorCal. I'll post my results here in this thread. But I must say I'm pretty excited. Ive owned my Tahiti for over 15 years and it finaly feels like the Hot Boat it should be. 78_Tahiti aka Steve Mac.