druddle

I have a friend who has a co. car and wants to put a different back box on it, probably a Magnex.

He knows that this will invalidate the warranty on the whole exhaust, but also knows that the leasing company will not allow it.

Is it feasable to fit and remove it when its time for a service,or will this damage the Magnex too much ? When it goes into the dealer for a service, will they tell the leasing company when they fing the b/b ?

Cheers

Dave