I dont understand that system at all. Especially on a 4x4
If the intake is under the truck don't do any stream crossings. Forget about mud bogging. But even in a rain storm, everything gets wet. How do you keep water out. I have a softball size dent in my muffler from hitting a rock, and that sucker is higher than stock location. That system is for posers who don't use their trucks as trucks.
I would never put one on anything I own. I'll stick with my factory turbo.