*RARE* video of the 1976 BMW E9 CSL with 800hp M49/4 or M88/2 biturbo motor!

what looks to be an in period segment on the twin turbocharged BMW E9!!

I couldn't even find pictures of the turbocharged M49/4 or M88/2 -- let alone this video I found on social media; the two snails are clearly visible and they're actually putting the motor into the CSL.

if the original FB poster "Stav-Tech" puts this up, I will take this down. It needed to be saved!