Can someone tell me what the subtle differences are with the Matrix XRS CAI (Injen, TRD, AEM) and the Corolla Sportivo. I noticed on top of the standard air box there is some sort of sensor held with two phillips head screws, and at the back of the air box there is a vacuum hose of some sort. These obviously need to be re-plumbed back into the CAI. So I was wondering if the CAI piping allows you to connect all these things up to it, and if so, are the hoses or mount points the correct size etc... The photos for the AEM one don't seem to show where you can plumb the sensor into the pipe. But the Injen and TRD seem okay. Sorry for all the questions, its just that I need to do some prep work before placing an order for one and want to be sure that it's going to fit without too much hassle. :o