Seat Ibiza 1.8T Exhaust

[Seat20V]

Hi,

I know this has been covered a fair bit but i'm looking to replace my standard exhaust with either a Piper or Miltek exhaust. Some people say get 3" and others say 2.5" but I can only find a 2.5" option with the Piper and Miltek exhausts, you seem to be able to get a 3" downpipe for this model though.

Any ideas would be good of personal experiences with these exhausts.

Thanks