Which one would you guys prefer to use for IC piping? Im bout to make a set but dont know which to use. thanks

 

Personally I'd go with aluminum if that was an option for you.

If not, stainless over mild steel. It won't rust and can polish up just as nice as the aluminum. Are you welding it and if so what type of welding will it be?

 

I am going to tig weld it. Just heard that stainless will keep heat in more then mild steel. What u think? thanks