i have a similar item fitted to my 205 rally car, but mine is welded on. Acts like triangulating the rollcage through to the strut tops. Helps flex/handling and removes alot of force in a crash. Safety is key with these
he shouldnt be doing that mate, MOT testers arnt allowed to touch cars during a test, not even take wheels off to check brakes etc....
id be ringing vosa up if i were you...
but thats just me :)
james