A system for circulating oil coolant and exhaust gas in an engine including an oil transfer tube, an oil filter cap, a bypass manifold, a coolant manifold, an adapter plate, a coolant filter hosing, a high pressure filter screen, a pump, and an EGR delete. The oil cap and the oil transfer tube act in conjunction to redirect the oil flow. The bypass manifold is able to replace an oil heat exchanger in the oil reservoir of an engine. The coolant manifold is able to redirect coolant. The adapter plate is able to be attached to an OEM oil heat exchanger. A coolant filter is able to filter coolant in the system. The EGR delete enables a system to bypass the EGR system in a simple convenient way. The high pressure filter screen is able to filter in high pressure environments. The pump can be used to direct coolant to the coolant manifold. These elements can be provided in a kit that is designed for certain makes of vehicles. A means to manufacture a bypass manifold is also provided.