I just upgraded my tires from 215/55/16 to 225/55/16. My car looks like its sitting up to high. What do I have to adjust to make the car lower?

 

ummm...adjust WTF???
anyway, it looks like that because the tires are new...once they start to wear they'll start looking lower.......your height of the tires is 55 which is the same as previous....shouldn't be different....

 

The tires are taller. Your sidewall is now 55% of 225mm versus the 55% of 215mm as it was stock.

 

Depending on how long ago this was too, you may have to wait for the springs to settle back down a bit.