If the low-frequency and large-scale oscillation of the traction grid voltage continues. the grid voltage protection of locomotive or EMU traction system will be influenced. resulting in converter traction blocking and affecting the normal operation of the train. In view of this practical engineering problem. https://www.roneverhart.com/BRExhaust-2004-2006-Nissan-TITAN-5-6L-Direct-Fit-Replacement-Exhaust-System/