Definitely do so. Along with all the cooling system hoses. Problem is those hoses are expensive, and will add about $200 to your parts tab. Worth it, though. Wa

Definitely do so. Along with all the cooling system hoses. Problem is those hoses are expensive, and will add about $200 to your parts tab. Worth it, though. Wait, I would actually replace the actual thermostat housing due to corrosion. Old coolant is a bad mother on your cooling system. Make sure to also flush out the radiator with running water. Oh, and since these are aluminum parts, go to a Honda auto parts dealer and ask for a tube of Hondabond. Its a silicone dressing that is 100 times better than anything available from Pep Boys. You want to make sure your parts seal properly.