RAM upgrade for a macbook pro late 2011 I have a macbook pro late 2011.

At this moment I am running the basic 2x 2GB 1333MHz rams ,but I want to upgrade.

Now,I have read on some forum that this macbook can run 1600MHz rams even though Apple sold it with 1333MHz rams.

Any ideas what's up with this?I am a bit confused at this point as I don't know what to buy.

Also, are Kingston memory sticks good?I had a kingston SSD a few months ago and it was just great ,but don't know about rams.
You can go with 8GB or 16GB. I have 16GB in my late-2011 MBP 15 inch. As I recall they are Crucial 1333mhz. No problems, she runs fast and sweet.