he removed more than just the frunk....
I've read all of the comments following the YouTube video.
He makes no mention of, nor does he alludes to, any other weight reduction aside from the frunk removal for the purposes of this 10.44 pass.
He does however state that further weight reduction efforts aside from the current frunk removal may be utilized in future runs.
Since the only claim he has made regarding weight reduction is the frunk removal, and his videos over these last several months appear to be on the up and up, I am inclined to believe that his improvement to this point , i.e. achieving 10.44 over his prior bests in this low options version of the car, is related to his frunk removal and no other weight reduction efforts thus far.