i heard someone does "satay" style welds 4 track cars locally. (pricey)
http://img120.imageshack.us/img120/93/nippy2121img600x4301161us7.jpg
photo as a reference
davidv00,
what are you trying to accomplish? if it's chassis stiffness, might as well get an FIA based specification bolt-on rollcage. easy in, easy out.
