There is no doubt they are dangerous to vulnerable road users (bikes/pedestrians/motrobikes)
i. Parliamentary Advisory Council for Transport Safety. Bull-bars. London: Parliamentary Advisory Council for Transport Safety, March 1997
(Type IV evidence - observational studies)
ii. Hardy BJ. A study of accidents involving bull bar equipped vehicles. Study No. 243 Crowthorne, Berkshire: Transport Research Laboratory, 1996.
It may also mess up your airbag fire times.
I wouldn't fit them.