Inliners International Forums General Discussion Engines Do I have to use the water heated option on the Clifford intake?

I have the clifford intake on my 3oo and I put shutoff valves for the water,I figured if I shut off the hot water,the cooler charge would give me more power in summer,but I have found it runs a little better and gets better mileage with the heat on even in summer,but you can definitely run it without if you want.