Yep Soren. Friar John is correct. ALL I did was head to a local auto exhaust shop here in Prescott, and the guy there in about 10 minutes made me a couple of extensions about 14 inches long, and he only charged me about 10 bucks.
I then polished 'em up usin' Mothers Chrome Polish and they're ALMOST as shiny as chrome, and so I've never felt the need to have 'em chromed, though you may wish to do that.
I think you can see what I mean by this picture here...

And so, I'd say just check with a car muffler shop there in Beaverton to see if they'd maybe do the same for you. I sure don't see why they wouldn't.