exhaust solutions

  A little late but...     (I have no email on weekends)
  Friend of mine races a Sprite with a 3-into-1 header with the collector
tubes laid out flat side-by-side.  Overall thickness is less than the diameter
of the exhaust pipe (except where it joins the exhaust pipe, of course).
  No idea where he got it, but I could ask.  Unfortunately(?) he's been
racing this same car for 20 years, so there's no telling how old it is or if
it's still available at all.
    Ed in NC