Quote Originally Posted by Jaemus View Post
Of course, seing as how the pressure will be increased, there is more chance of a failure such as a hose blowing off; if your cooling system is about to fail in such a way this will certainly provoke it to do so.
This is one I found out kinda the hard way.

I fitted a higher pressure cap and had random hoses blow on me for the next 6 months. Obviously they were in bad condition, but just be prepared for it if any of your hoses are suspect.