Most 2JZ water pump delete brackets are never flow tested. Ours is. We cut the flow restriction through our 2JZ water pump delete bracket by 47% before it went anywhere near a customer's engine. Here is the work. A 2JZ water pump delete removes the belt driven mechanical pump and replaces it with a remote electric pump, using a bracket that blanks the pump housing and routes coolant into the block. On the 1JZ and 2JZ the same part usually carries the alternator, which is why it gets sold as a...