Aw you dang whipper snappers.
Welcome to the site
. Nice car. I had a Maxima, great car and was able to pull some good numbers from it. I think on the sun roof if you use it quite a bite keep it if not lose it. I know there expensive but if you can swing for a
scangauge it will pay for itself in no time and can help answer questions if mods are working out or not. It looks like you already figured it out but changing driving habits is the biggest bang for the buck.