This 700 Header Pipe works for both Carburetor and EFI 700 Models. Simply Unplug the O2 Sensor !Most customers say "It Runs Better !"This Pipe comes with (1) Mid-Pipe Gasket and the (2) Head Pipe Gaskets !

This fit 700 EFI also. Simply remove the O2 sensor.Most customers say "It Run Better With-Out the O2 Sensor !"