Ahh, gotcha.
It would be cool to take everything back to stock, drive for 1,000 miles and reinstall everything, then repeat the trip.
One thing that I am sure is a factor too is my increased skill at efficient driving technique over the year of owning the car. I would assume at least part of my gains is related to increased familiarity with the car. That being said, I have always driven in an efficient manor. But, I am sure I have adapted to the characteristics of this car and experienced gains from that.
Oh, I am pleased with the look. I was concerned about mucking up the look of a brand new $30,000 car with hand made add ons. So, I must say, I am glad it looks decent.
Matt