It made a very noticable difference over the k&n i had in there. Difference in throttle response and feels like it flows way more up top. Now that this is installed it makes the k&n feel like it was choked up after 5k. With the filters next to each other(same size) The green filter has more surface area. I think this filter is far superior to the k&n. I will have pics up in a little bit.