I know all of this has been discussed to death over the years, but I figured it was worth asking for some of today's opinions.

I have a 2012 tC (automatic). Just bought it before the winter, has about 20k miles on it, and I put the Injen SRI on it. Everything else is stock.

When (or if) the snow melts, I'm interested in a couple more simple mods.
The AP pulley looks nice, and then maybe the Dezod Green header.

This is my daily driver, so I want it annoyance-free. I'm more-so curious about any reasons I shouldn't do these mods on an auto. I'm not expecting any HP gains. Maybe a little deeper sound and slightly better responsiveness.