Carry a spare! If you have our GoWesty Fuel Injection Component Replacement Kit (GW-EFI) then this is the required spark plug.
Note: These NGK Iridium plugs are only for use with our fuel injection system, not the original Volkswagen fuel injection. If you have the original Digijet or Digifant injection, please purchase the BR6ES or the R43XL depending on which of the two are in stock.