What are the preferred exhaust manufacturers for upgrades and how much performance improvement could one expect.... without blowing something up of course. ?? 
I'm looking at all these skis I got laying around and my spidey senses are tingling. Are big gains reserved for the smaller skis? Is Factory the preferred pipe? I just talked to a guy that has the same model year SPI as me (1996) and it does about 42-43mph. Someone put a factory pipe on mine, rejetted the carbs and most likely a prop and tuned it. My SPI bumps 48mph on the GPS. I'm so glad I lucked out with this ski.... cuz I sure didn't know any better and I sure the seller did not either.
I'm thinking about something for the 720 in the SPX. I thought about cheating with my 1996 GTX but I guess Sissy's ski will just have to be faster than mine.
She freakin loves it. I can't mess with that. LOL
I'm looking at all these skis I got laying around and my spidey senses are tingling. Are big gains reserved for the smaller skis? Is Factory the preferred pipe? I just talked to a guy that has the same model year SPI as me (1996) and it does about 42-43mph. Someone put a factory pipe on mine, rejetted the carbs and most likely a prop and tuned it. My SPI bumps 48mph on the GPS. I'm so glad I lucked out with this ski.... cuz I sure didn't know any better and I sure the seller did not either.I'm thinking about something for the 720 in the SPX. I thought about cheating with my 1996 GTX but I guess Sissy's ski will just have to be faster than mine.
She freakin loves it. I can't mess with that. LOL
