hey guys is there any difference between a 13b vs 13b-rew exhaust manifold flange. trying to build my own manifold. i could draw one in autocad and get it cut, but why go through the hassle when there are so many cheap ones available for the 13b.. like

http://cgi.ebay.com/ebaymotors/Mazda...mZ250274524350

and

http://weirtech.ca/images/Mazda13b.jpg


if the 13b won't fit, where can i buy one or making my own one is the only way?

thanks!

 

just to clarify -- im just a little confused if there was differences between the 13b engine models as far as the exhaust manifold flange was concerned