The options are somewhat limited. The Camaro spoiler looks ok, I just don't like how narrow it is. The AAR race spoiler is long enough but looks pretty big up front. This is why I built the side skirts, to get it to flow into the body which I think makes it look much better. Without the side skirts, it looks odd from the side I think; looks out of place. I looked at making one like on the new Challengers but ran out of enthusiasm. I really don't care for the stock AAR chin spoilers; seem like a compete add on and of little value, not to mention I don't think they look very good on anything other than a stock AAR.
It all depends on the look you are going for.