I'm actually going to put in a heat shield and outside duct to draw in the cooler air. But it actually ran very well and the throttle response is better. A turbo fan is a aftermarket item that goes in line on the intake tube that draws in the air faster. some people think there worthless and some are, but if you get the right one it does work. Consider it an exhaust turbo without the exhaust.
Oh and the factory air box is ducted to the outside, but if you look inside your air box, you will see the air passages are restrictive and cumbersome to the air flow. Also, the duct is behind the headlight so max flow is restricted. I do agree that the air in the engine compartment is hotter, but in motion its drawing in cooler air everywhere and its not enough for trouble in normal driving in my opinion.
Quick update. The system works well, I have better throttle response and less throttle lag. All seems well and I experienced no issue with engine compartment heat. I do plan on building a heat shield / divider eventually just to protect it for when slinging mud and water on the trails. For those of you who don't know what a cold air intake fan is, I attached image so you can see it. These can and do work if your not expecting exhaust turbo results. its just to mix air turbulence for better air fuel mixture in the chamber. Its not going to give you horse power and street racing results.
That fan is a restriction. Squire turbos work but draw over 60 amps. No way that fan helps.
