I did it, too. But because I look like a cop when approaching people from behind, they tend to slow down..it's starting to get annoying, actually. I don't think the
roof rack helps, either. I have to imagine it can be misinterpreted as emergency lights in a rearview mirror.
Agree with OP, 100% have a pro install if you're gonna do it.
I can't speak to parking sensors on SX as I have an EX, but it hasn't affected my front radar at all, cruise control works fine. Lane assist (which is in front-facing camera at the front of the rearview mirror) is no factor, but I turned off lane assist anyhow.
Also, they cut holes in your bumper to install and the inside of your hood will dent slightly to accommodate the top braces, so you've been warned.
That said, I do really like how it looks. After my chrome delete next week, it's REALLY gonna look like an LEO vehicle for better or worse..I say "for better or worse" because despite the fact that I like how it looks (and the chrome delete will make it look that much sicker), I don't like how it seems to affect other people's driving when they see me coming up from behind. Two guys stayed side by side together on the highway today for like 3 miles, making it impossible to pass either of them. One of them was in the process of passing the other, and then I got behind him so that I could also pass the slowpoke in the right lane. Dude on the left suddenly slowed down big time once I got behind him to follow suit

This has been happening with increased frequency and I've only had the grille guard for two days. I don't think it's a coincidence. No, I'm pretty sure they think I'm a cop lol.
