The most popular kit seems to be the one by WebElectrics. Here is a gif of the turn signal:
http://www.webelectricproducts.com/sts/mustang/05/m05seq.gif
And here is a link to a movie from Roboz, showing the brake light sequence:
http://www.ozziesrobots.com/HTMLobj-4783/MVC-005V.MPG
I personally do not like the brake light sequence. Maybe it's just me, but if I have to slam em down, I don't want the 0.5 sec it takes for the bonehead behind me to realize what all those flashy lights mean. You have to admit, during that one sequence, a driver behind you could misinterpret them as a hazard signal, or simply get distracted by a sight he isn't used to seeing. That half a second could mean the difference between him coming to a safe stop or riding up into your ass end. I would get them if they had a feature to disable the brake light sequence however, because they are pretty cool looking.
http://www.webelectricproducts.com/sts/mustang/05/m05seq.gif
And here is a link to a movie from Roboz, showing the brake light sequence:
http://www.ozziesrobots.com/HTMLobj-4783/MVC-005V.MPG
I personally do not like the brake light sequence. Maybe it's just me, but if I have to slam em down, I don't want the 0.5 sec it takes for the bonehead behind me to realize what all those flashy lights mean. You have to admit, during that one sequence, a driver behind you could misinterpret them as a hazard signal, or simply get distracted by a sight he isn't used to seeing. That half a second could mean the difference between him coming to a safe stop or riding up into your ass end. I would get them if they had a feature to disable the brake light sequence however, because they are pretty cool looking.