K&N filters/colf
Check out the K&N website for the proper cold air intake for the 2012 and then google it for the best price through Amazon.com, e-bay, etc. I just put a K&N air filter on my 2012 S and love it. Will not go with a cold air intake yet b/c of concerns with the warranty, etc, and what the real increase in power vs mpg is. I know that just changng over to the K&N air filter will not void your warranty.