I think most of the people were talking about the ET street radials, which are comparable to the nitto drag radials. It's just like a normal radial car tire which requires no tube.
I am running mt ET Streets at 10 psi cold ( 20 psi on the street)with no tubes. Was at the track weekend before last and was wheel hopping leaving at 10# of boost 1. 61 60 ft. 12.01 at 102 Waiting for a chip from Eric, NEED MORE TIMING!!!