2 questions megane 225

im interested to know completely standard 225 has a little bit of chuffing from the exhaust but only once you have given it some beans. drive it normally its fine. this seems to be normal but would like to make sure.
car has had new plugs and injectors.

2nd how do you configure with xenon headlights and how do you configure without them?
looked briefly tonight couldnt see anything

 

not my car? and plus mine is 300 not 330

 

yeah its not my personal car im asking about. i do own another standard one so will compare that tomorrow