I have a late model car ('06 Civic) and I just can't see me putting anything on this car that I made myself.
I'm waiting for a quality-made kit I can buy that has:
1) 2 rear wheel skirts (preferably painted to match)
2) solid wheel covers (at least 2 for the front)
3) a better / lower front splitter (the rubber piece that goes under the front bumper.
The DIYer part comes in when I fasten the bits on.