If you have anti-lag, What happens when you get an emissions test?

anti lag is illegal on uk roads. turn it off for the mot. and after you pass just use it

De-activate the anti lag, and then fail because even if you do have a cat it would have been destroyed. Or you can take it to your friendly MOT test centre owned by a mates dad ;)

You fail. I don’t see why you would need it in a road car, that’s just searching for trouble and searching to spend a lot of money. Anti lagg systems make the turbo wear faster.

Or just burn all on your way and kill everybody in the mot center !

You don’t take it and hope for the best

Then end up in jail and get your car crushed