Anyone have a good website to purchase cold air intake and have it shipped to a CA address? Websites i've been to say some nonsense about emissions laws... stupid commifornia....
Let me know what you guys think.

 

carid.com? autozone/advanceauto/orielly? I've seen those parts at my local stores.

I'm not sure about the 2018 specifically, but on the 5sfe cold air intake takes air straight from the engine bay. So, the default air intake is actually colder, as it is routed from the grill. And from what I've seen, I think the performance boost you get is negligable, and given the aforementioned fact, even reduces performance.