Good Choice! The whole piping will be a much better upgradeable path, if you ever decide to get a muffler for it, it will be an easy cut and weld in.
Haha its funny you mention you are skeptical of the mods thus far. I had an access port, turbo back exhaust, and intake on mine at 900 miles and then I added the Intercooler and pipes and pro tune at around 1500. I now have 6600 miles on my car and absolutely nothing has gone wrong with it yet. fingers crossed. but really as long as you mod correctly you will be fine. I wouldn't worry too much, and besides if you put the accesport on your car, the second you do anything that requires warranty work and they run the car and see it is not a stock run system your eco warranty along with powertrain will go out the window. so as the saying goes, Go Big or Go Home. but I see your concern. no worries.
And NOPE! Never selling my FiST, I am going with a bigger turbo so I need a better intercooler, and probably going with the 2J-racing intake as I have found out It would be the best choice for my setup. but still iffy about selling the COBB intake. but the mountune one I am definitely selling. along with the mishimoto Intercooler. great little intercooler but I need a bigger and better one.
I know the feeling of the ST crowd here, I have found very few that wave or acknowledge me while I'm driving by and waving. I have only ever talked to one other FiST owner on island who works on Pearl harbor, i saw one day as I was at the gas station on Hickam. but there is a Facebook group called 808STeeze you should join, we try to have a drive every couple of months and there are lots of helpful ppl on there. not so many FiST's but a lot of FoST guys and they are really cool as well.