Do a tune up to make sure engine is healthy. Then do CAI (I live in Manitoba cananda, my filter is 5" off the ground at most and I drive it thru snow, rain, anything) if you're that concerned about sucking something up get a hydro guard for like $30. Second Get an exhaust, it'll bolt up to your stock cat and give you the sound that you were looking for. After that do your header. It's a huge pain in the ass. After that you will want flashpro to make use of the mods you have. From what I remember, with basic bolt ons you'll be sitting at a little over 200whp with those depending on tune and elevation and such