the present disclosure provides for a vehicle engine having an egr system where pairs of cylinders are directly connected to each other . for example , a first and second cylinder may be operably connected by a valve actuator where a high energy , blowdown exhaust gas from the first cylinder may flow through a first flow path directly from the first cylinder to the second cylinder . likewise , during the firing stroke of the second cylinder , a high - energy , blowdown exhaust gas may flow from the second cylinder through a second flow path directly into the first cylinder . this arrangement may pair cylinders to take advantage of high - energy exhaust gas .