'68 Barracuda Notch

The first is the exhaust cutouts in the rear fascia. I only have one and it doesn't line up with my exhaust tip at all. I have dual exhaust and both tips just exit under the fascia. Should I fill in the existing cutout, add a second cutout and rear do my exhaust or something different?

I like what they did with the new Ram trucks. If you could make a cut out in the valence, and the corresponding "bump" above to mimic that, I think it would be cool with the round tips. You could even "borrow" a pair of round tips from a Ram truck, they are nice.

On my car we made rectangular cut outs to match the stock style tips. Hind site I would have made them bigger, deeper, and more exaggerated. They are subtle to the point of almost not being noticeable. Couple of pictures with the tips "mocked" into the approximate final location. I have yet to make the exhaust for the car so that is the best I can do for now.

The second body mod is the antenna hole. I don't even have an antenna right now (much less a radio), but I do like listening to FM radio. If I fill in this hole, are hidden antennas reliable enough to use?

I like the stock antenna, but, I am kind of odd... I have heard the hidden ones work well, I have no personal experience in that area.