I'm curious to know how much adding a front bumper lip will help with reducing drag. Some people install the "home depot" lip, which is just garden edging screwed onto your bumper. A $10 modifcation like that might help a little... or maybe not.
After I lowered my previous Civic sedan and installed an Integra front lip, and had my alignment corrected for everything including camber, my average MPG went up 2-3miles on every tank.
How much of this do you think is the lowering and how much is the lip? If I don't lower it and just put on an integra front lip (what years BTW?) do you think I'll see an increase?
Integra lip would be hot. I think it'd be about 50/50, because neither really have much weight over the other, since they both just keep air out from under the car. It might also be that it is a combination of the two the goes up by some function not just linear.