According to Tristan / WTFauto the intercooler for the water to air setup is in the worst place you can put a intercooler, basically 0 heat dissipation with it breathing exhaust gases at the best....worse theres no fan attached either so it's basically doing nothing lol. I'll upload my graph once i get into the office tomorrow to use the scanner.
Also the intake manifold and exhaust manifold are pretty messed up, looks like ebay or worse quality stuff. unsure the effect from the exhaust manifold on hp, but i assume the intake manifold would hamper the figures a bit. Once my cash reserves are replenished i've got about 5 major things to get through:
Coilies (Tops are rooted)
Softtop repair (duct tape/adhesive till i source a replacement from USA or something)
Intake Manifold
Exhaust Manifold
Intercooler fix (either adding a thermofan to make it better, or redo system so the cooler is at the front which according to Tristan is just fricken Ace but much more $$$)
Yes will get photos soon, might go give it a wash sometime this week.
Edit: Also what turbo are you running? All I know is that i have a Garrett....which means nothing lol, might message Tristan to see if he had a chance to look.