Yes and no.
Retail Flexons came in two tongue specs; the regular Flex and the "Racing Flex". Depending on the plastics Raichle/Kneissl was using during the 20+ years the Flexon was produced, there was some variability in stiffness with both tongues.
However, Raichle made at least two other tongues for actual for racers using its boots. One is solid yellow with very rounded "ribs" and a lower top flange than on Raichle Flexons sold at retail. When Raichle was in its heyday on the World Cup circuit you could see a lot of those tongues on the Flexons of downhillers.
The other is a very, very, very stiff tongue (by Raichle Flexon standards) that IS green and black. Neither of these tongues were sold with the retail models regardless of the boots color schemes. They could be specially ordered but were only produced in limited quantities and difficult to get.
Raichle produce a black and green boot several times as well as a solid yellow boot. However, those "Racing Flex" tongues are "off the rack" models so to speak and not "race stock".
Don't be disappointed though. The retail "Racing Flex" tongue serves its intended purpose quite well. I suspect that Raichle made a number of "race stock" tongue versions over the years. Those are the just the two I know of.