Try trimming the clip to the length you want, save the sub clip in a bin.
Create a boris Comp (on V-A or V-B or V1)
launch Boris,
On the default tracks that are present in boris, delete track 2, change media type of v1 to ‘bin browser’ (Clik where it says v1 and choose m100 bin browswer from the pop up menue)and find the trimmed clip you just created and select it.
Apply stabilization filter and render.
HTH
A.D.