This is also on the other forum but I figured I would get better/quicker help here. I am currently running a 8-16 skat in my '06 SJ and it hits hard, but it is basically a stock ski except for a ride plate and some non-performance mods. I have a girdled head (around 180 psi) waiting for install along with a Pro-Tec wetpipe. Im an guessing this new setup will be too much for the 8-16 and it will cavitate hard or hit the rev limiter quick, I have a line on a 15-20 in my price range but I want to know if it will work for my setup. Its an older skat-trac long nose 15-20, looks to be in great condition. Thanks in advance.