This is a great oil filter and cheap. It does what it is supposed to do. If you want to save yourself a little money I would go with the K & N instead of the OEM filter. It filters your oil just as well as the OEM if not better.
The exhaust on this kit is perfect. Increase exhaust flow and sounds throatier, its not annoying loud. If anything this is the upgrade to get. I am excited to see how the cams are going to do once installed.