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Mark in TX
It does what it is intended to do. It raises the boiling point of coolant. The only complaint is that it is a real pain to turn to remove. It is on very tight. I usually put on a pair of mechanics gloves to get enough grip to turn the cap.Read All Reviews
Jason in AZ
I bought this before the version 2 came out and it works awesome. My temps are very stable I've not had any problems in over two years. My bike warms up much faster and stays there. It will get warm enough to turn on the fan in hot weather when idling or slower off road but it cools right down.Read All Reviews