Hi guys,

before you flame me i did do a search of the forum, and i couldn't find the answer i need.

weighing up getting either custom 4-1 headers by a reputable exhaust workshop in brissy, or buying R-Crew 4-2-1's. i want 4-1's guys but i might have to bite the bullet and take 4-2-1's.

This workshop have told me they can make the headers in either Stainless or Mild Steel, but they recommend Mild steel, as when it heats up it expands. obviously the differences meaning that the mild steel would have a less chance of cracking, but has anyone got any experience in regards to power etc between the stainless and mild steel??

FYI they never mentioned anything else in the comparision between stainless steel and mild steel. obviously rusting etc are there but im not worried about that, a couple of coatings will fix that.

Cheers guys,

Chris