No, ELS flashes the coronas in the same location as the headlight and tailights (which every vehicle already has). You just need to enable headlight and tailight coronas in your vehicle's configuration file located in the ELS folder.
[ CORONAS ]
Headlights = off, 0, white, white
Taillights = off, 0, red, red
IndicatorsF = off, 0, white, white
IndicatorsB = off, 0, red, red
Reverselights = off, 0, white, white