Oh by the way, one more seperate qns:-
If the tail pipe (exhaust) of the car is facing down, can we change
it to a straight one?
What I mean is changing to one with the same size, just from facing
45 degrees downwards to a straight one. I used to have a car that
change the tail pipe ONLY to a bigger one and fail the inspection,
but not too sure with the direction.
Any1 can advise? Thanks.