http://www.burnsstainless.com/....html
kind a overpriced...?

is there a drawback of using oval as exhaust tubing? it would look pretty cool and i can probably make a aerodynamic panel underneat my car if i use oval tubing, that should clear half an inch if not 1" of space. (for catback of course lol not the header)

just an idea. what do you welder think?

 

http://www.boyceindustries.com....html

 

you lose area.....

 

DR GAS used to sell ovalized tubing. Not sure if they are still around. You might also check Stahl Headers.

 

yeah, drgas.com is still around, I called em last week.

 

http://store.racing-solutions.org/index.html

They don't sell oval, but way cheaper than burns on tubing,etc.
Oval is really expensive, and requires huge area to equal round, and a transition from round.