So wanting to get some ideas. From what I am reading is that the 2000 4.7L is a non VVT-I, giving it less horsepower. I had my 2006 that was just incredible with power, loved it. Sold it, cause I had a kid, so needed room for his carseat. So I have been hearing about people who throw on a K&N air filter and a Flowmaster exhaust, and have seen a little difference. My question is, Since the K&N filter needs oiling, isn't that gonna be problematic down the road? Second, does the Flowmaster help to where I'd notice it? All my trucks in the past have had one on them, but they were on when I purchased them.