Corsa-B.uk - Vauxhall, Opel and Holden Corsa B Owners Club

I ordered a backbox for my car and it came today and did not realise how big the pipe is! its a single 4" pipe.
Does this big look studpid on a corsa? is it worth putting it on or swapping for a 3" pipe?
thanks.

urmm well its really all down to your personal preference, me myself i prefer 1.5" or 2" rolled tips, as i think the large melon shooter ones look to chavy for me.