downpie

:banghead2hi iam looking into getting a custom downpipe/sportscat made for me and i am undecided on mild steel or stainless , because stainless can't dissapate the heat like mild steel but then mild steel rusts out. ideas anyone???

Morning guys, Im looking to buy a new miltek exhaust system for my mk3 ibiza cupra but unfortunately cant buy the downpipe+cat+system all at once. (due to financial issues-ie not being able to afford the £800 approx). Could i buy the miltek downpipe and freeflow cat and fit it to the...