Theres no way to hide that tube guys, trust me I have tried. Theres very little room to work in the back of that undercarriage and with Ford making the rear bumper with that opening

, It is what it is.
As for the spoiler. I don't like Aluminum spoilers so there out! I wouldn't mind carbon fiber but have no other CF pieces to match so that would look out of place. All the other fiberglass spoilers I don't like either too low or TOO high. The spoiler I have on there is a veilside spoiler which looks much better in person. What I liked about this spoiler is the lower section of the spoiler has turn signals and the top spoiler is a brake light. Other knock offs only have the top brake light minus the bottom turn signals which I thought looked very nice.
To each there own though, everyone is entitled to there own opinions good & bad. I built it for me and I like it very much and thats all that matters.
Thanks for the comments ladies and gentleman.