Yes and no, it is still made of 304 SS, the main quality you are paying for is the welds right?, though I did notice some pictures of dodgy welds in the feedback. edit: I think I'd like to keep it a while, I'm a big fan of the look and its much bigger than I expected.

I was looking in at around $500, by pretty expensive I mean similar to the ones you linked, there's quite difference in price between $500 AUD and $500 + $200 shipping USD, I was quoted by a local exhaust shop $800+.

Yeah I think for now I will just hang around stage 1 engine and coil overs + swaybar, might run it in a few motorkhanas, though mostly just a daily, so that's a good point, I have been tossing up and reading the general butt dyno opinions of both.