Yeah just called up a few places. Minimum order is $150. OK I guess if I need many flanges.
R200 is about US$33? That sounds good. Even if you ship me using regular mail (Another $10?), that would still save me lots of money. Anyway I just ordered pre-cut CNC mildsteel flanges from
www.spdexhaust.com (you can download the catalog and pricelist from their website). Cost was $18/each and I need to modify it slightly. The bolt center for the SZ manifold is about 2.9" while the flange I ordered were 3". I just need to file it a bit.
The cheaper flame cut flange doesn't seal too well. I've been replacing gaskets on my downpipes many times already. It sucks. I'm also going to put on thicker gauge (16g) downpipes. Last downpipe cracked (cheapo 18g).
BTW, Barry, for your flanges, what do you think about cutting a slight recess for the "female" type and a slight "lip" for the "male" type. This means they can fit without needing gaskets?