The RTR spoiler is on my car...
Thanks to conflicting obligations, I didn't even get to start the job until yesterday afternoon and it was dark by the time I finished. Trying to photograph a flat black spoiler on a dark blue car at dusk is not an easy task.
A couple of observations from the swap process:
1) allow plenty of time to remove the stock lip spoiler, if applicable. The double-sided tape, as you may know, is from another planet. A heat gun helps a great deal but it's still a slow process. Once the spoiler is off, settle yourself in for an hour with the Goo-Gone (or other paint-safe)adhesive remover) and a soft plastic putty knife.
2) don't lose the hardware- there is a high probability that the stock hardware could find its way into the structure of the trunk lid. When the nuts are almost off, I recommend closing the lid as much as possible (but where you can still move the wrench) so an errant nut might have a better chance of falling out vertically if it gets away from you.
3) Uhh.. not sure what's happening with the paint under my spoiler but there was a section that had air bubbles a couple dozen 1/8"-1/4" diameter air bubbles. These are seemingly not related to any kind of rust, not related to the heat gun (they're in the middle where not much heat was applied)...and they're 100% covered up by the spoiler but still, that didn't make me feel too good.
4) stock lip spoiler uses 4 studs/nuts in addition to the tape. The RTR spoiler uses only the 2 outer holes. This is a concern if you're replacing a stock spoiler as there are open holes under the spoiler. I'll be loading them up with silicone from the inside (which is 100 hidden by the carpet/liner) as water will likely get in there. RTR also gives you surprisingly dinky washers...way to save $.003, guys.
5) the RTR spoiler is subtle. This is always the look that I favor for my cars but some might look at it and wonder where their money went. It also looks like it might almost be functional. It has a similar rake to the stock lip but it's a bit longer.
6) this piece might actually be a better upgrade for a Boss302. The black finish fits in with the scheme on the Boss cars, the all business, no flash looks would seem right at home there. Also, the thin form of the spoiler actually matches the Boss 302 front splitter, making for a cohesive composition, if that's something you care about.
7) essentially no change to rearward visibility over the standard 2010-2014 GT lip spoiler. This is absolutely nothing like the GT500 or CS style spoilers that take up much of your rear view mirror FOV.
Over all, I'm happy with it. The RTR aluminum spoiler isa tasteful, nearly OEM looking piece that is the opposite of the chrome wheel/fake scoop school of Mustang mods. It's aggressive without being flashy or goofy.
This was a part that I had wanted for my GT for the past three years or so...and it had gone extinct just as I was ready to click the "buy" button. I was very surprised to see it come back in stock...With S197 specific parts entering their downward availability slope, I'm really glad to have found one.
Pics forthcoming.