R&D exhaust help

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Wi
I just picked up a used R&D pipe. I'm new to the superjet world, I have no idea how to run water lines or where to start on jetting.

I've been racing a 2 stroke quad for years and can jet that in my sleep (i do kinda cheat and use an EGT gauge too) but have no clue where to start on a jetski.

The pipe I bought came with 2 different stingers. The red one has a few small rust holes that I'm going to weld up. Is there any benefit to running one of these or the other?

There seem to be a lot more water fittings than my stock pipe, anywhere to find a good diagram of how to run them?

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