This is our starting point. Being an original six-pot radiator, its size and performance left much to be desired. Notice the radiator core support channel that the radiator bolts to. To make room for the Be Cool unit, this will be cut out. Be Cool recommends that you clean your cooling system thoroughly before installing fresh components. Flushing fluid is sold at most auto parts stores and does a great job at lifting debris from the interior walls of cooling passages.