illyun,
Borrowed your photo - but if you could do this you could get 20 bhp hope you don't mind

you missed a few spots...

after B-pillar side windows you can tape over completely, a few more on the roof, and how often do you use far-reaching headlights? Not so often, so put a couple stickers on'em, too. It's 2 more horsiepowers! Can't skimp on'em, ya know!
