IAT Extension Harness
 

Has anyone actually bought this? Does it really help?

just splice in wire to extend your stock iat harness

personal recommendation, but I would try and put the IAT sensor as close to the TB as possible. You get nice cool air coming into the intake, but the temp warms the closer it gets to the engine.

You will add more fuel if your IAT is reading cooler, but that will also decrease your gas mileage, and cause a rich condition in your engine. Just my 2 cents.