I dont know much about Tubular O2 housings, but this looked like it may be a good deal to me. The site looks kinda cheesy, but I found it off of the main page of dsmtuners.com so I'm pretty sure the guy is legit. Are these good prices? Ive got an EVO III O2 housing and was thinking about going to an eternal dump.

http://www.punishmentracing.com/frameset.html

Looks like a decent deal... It's gonna be LOUD. I have to admit I like the idea of the external dump, but I can't justify the noise on the ol' DD.

If you scroll down he has 3 different tubular O2 housings. There is the atmosphere dump for $150 shipped, the recirc for $165 shipped and the one set up for external WG for $115 shipped. It doesnt look to be the most beautiful welding in the world, but I'm not building my car to be beautiful.