Does this have a yet to be installed back window? I would think the airflow would rather turbulent without a window, and decrease efficiency of the spoiler requiring it to be much higher to be useful and therefore greater drag. What speeds are talking?
That will definitely be a point of turbulent air. I would have sealed that up well before worrying about a spoiler. But that's just my 2cents...the spoiler looks like good handy-work though!
we get dinged for Lexan/plastic $X per cubic inches/feet. We are close to the $500 limit now. Once we see how much room we have after our mods are added up. We should have room for the rear hatch.
Hmm, I would try to get something on there.
May be work some Tuft testing to see how bad you want it, it'll at least give you some sort of feedback on what's going on back there.
