Just swapped the tail lights for 09 tinted ones and now all the brake lights except the center spoiler don't work. Any ideas???

 

Do you get voltage to the bulbs? - verified by a multimeter?

Have you checked fuses?

You are going to need to give more information

 

Check the bulbs and like the op said check for power at the sockets, I would start at any connections you had apart.

 

I feel dumb but it was the bulbs. It was weird they would go on then off so I just replaced the bulbs and it's fine. And just to help out anyone else, the 09-11 tails have a different socket set up for the bulbs than the 07-08 si sedan. Just another small issue I found that was throwing me off.