Two brothers and their wives who allegedly conspired to stage a car crash involving disgraced former Auburn deputy mayor Salim Mehajer have appeared in court.

Michael Moufferrige, 28, and his wife Nora Anne Bush, 31; and Elias Moufferrige, 30, and his wife Fakaha Ki Malinda Moufferrige, 31, remain on bail after appearing in Burwood Local Court on Thursday, all facing charges of conspiring to cheat and defraud Insurance Australia group (also known as NRMA).

Outside court Michael Moufferrige evaded a waiting media pack, saying, "I'm not guilty, my name is Bob," before raising his middle finger at photographers.

Elias Moufferrige also declined to comment, telling Fairfax Media, "I'm just going to be cool about this, I'm not going to answer any questions or ask anything. I'm just going to stay quiet, that's what I've been told by my [lawyer]."