that's funny, I know a guy that bought the sxr hull that joeys watercraft and TBM built and was in the 2003 issue of watercraft illustrated.
he put a big pin 750 with the sxr dry pipe and it ripped.
he blew up the 750 and put in a 650 with the sxr dry pipe and it still ripped. lol
the same guy puts 750s in X2s all the time and uses the coffman 650 pipe and they rip.
i remember seeing SXRs on the blowsion website running yamaha motors with B pipes for as much as $45000 lol
HEY, i just sell jetski junk and anything else i can make a killing on. dont ask me for tech tips.
oh wait a minute, didnt you once upon a time bring me a SN SJ handlepole and some other junk? lol
i think that pole is still floating around here someplace.
derek anderson/ wave warriors owner back in the day, had a jeff jacobs replica 550.
i went to his house to possably purchased all his jetski junk and he showed me a kink in the hose between the pipe stinger and the waterbox.
he said if you straightened the kink out , it went slower, so he left the kink. it needed additional backpressure.
thats just like the sxr sleeve or now the superjet sleeve that gets stuffed in the stock pipe exit. it adds power from the additional backpressure.
its easy to add back pressure, just hose clamp a hose down a bit.
to reduce pressure you have to throw waterboxes over your shoulder afterf putting in an eliminator pipe.
i had joey sign it. that mother licoriceer can ride!