I purchased the crz kn cai and put it on my insight. All I can say is VROOMMMmmmmm. Its noticeably louder and there is a chang ein the power band. It no longer seems to hyperventilate as you approach redline, but in fact keeps pulling. Unlike the maze the air had to travel through its just a piece of pipe bent at a 90 degree angle with a cone shape filter on the end. No improvement in mpg, but the butt dyno says yes.
