I have a civic vx and when i go fast (85+mph) it starts making some weird noises and it feels as if the engine is shaking or something. I also wanted to say that I have installed a generic short ram intake and it doesn't fit in the intake manifold place. It is as if the pipe is a lot bigger than where it should go and it just goes over the intake manifold hole. I didn't really feel an increase in hp, would you say that getting a cold air intake would greatly increase my hp?