I like mine too. Won't give you that seat-of-the-pants improvement like swapping out the CAT for a test pipe. But it looks great under the hood and definitely drops the IAT temps to ambiant. I used to see temps of 120+ with my open K&N cone filter located inside the engine bay. Now it reads the same as the outside temp, e.g. 50, 60, 70. I would expect a bigger benefit when hot-lapping at the track.