Header for MOST 4 cylinder cars (all Honda 4 cylinders for example) Boxer 4 cylinder car (i.e. WRX) have two separate headers. Inlines=singular v's=two.
Header for MOST 4 cylinder cars (all Honda 4 cylinders for example) Boxer 4 cylinder car (i.e. WRX) have two separate headers. Inlines=singular v's=two.