I went ahead and installed everything today and everything is pretty straight forward on it. As for the Tomei 60S, this is a very loud setup. It's not the loudest I have but maybe I'm just a bitch now and will probably part with the Tomei 60S. As for the header, I really hate the boxer rumble so the UEL is going to be up for sale. On a performance standpoint, I flashed it to OFT Stage 2 and it doesn't seem like there's any gains but I will give it a few hundred miles. I'm starting to toy with the idea of force induction since my last car had 3x the power of the FRS.