Mk4 astra exhausts- whats the difference between body types?

[Lankytim]

I have noticed that the Astras exhaust could well be on its last legs. Its not blowing (yet) but has been an advisory for being rusty for the last couple of MOT's so its time could come soon!

 

Ebay seems to be a good way of scoring cheap exhausts, but are saloon/hatch and estate 'zorsts the same? If not does anyone know what the differences are? Its a bit difficult to compare them online. The Astra in need of an exhaust is a mk4 1.6 8v estate BTW!

[fiatdaft]

the tailpipe on the estate is longer.