I've had the older style koyo and a newer style mishimoto... if it's mostly a daily, and you can get it cheaper, go with whatever is cheaper... Just make sure the cap you have works well. The mishimoto is a little thinner than the koyo, but regardless you can't really go bad with an all aluminum. I've seen them both around 300 shipped new. I feel like the mishi's raised prices since its become the honda boys go to radiator.