I was wondering if anyone ran this setup or is familiar with its installation. If I take both of these to the local exhaust shop, will there be any fitment issues? Also, I want to make sure I don't need to have/order any additional accessories.

 

As long as the exhaust is designed the for 2IS, the fitment will be fine. I forget if the PPEs come with the O2 sims automatically; but if they don't, get them.

Do your emissions laws on the island require you to have cats? If so, you will want to consider getting their PPE cats.