Lilswamper not that I noticed but I plan to do some other mods to the engine like header so induction was the best place to start. The K+N is definetly a free-flowing filter because at idle sitting in the truck with the windows up you hear what sounds like a vacuum leak. When I first installed it and was checking for leaks I thouhgt I missed a clamp, but i cupped my hands around the filter and noticed a reduction in the noise. The kit also frees up space in the engine compartment. I think I'm putting my control module there.
