3dRSFC band pass question

Dear AFNI experts,

I previously detrended an EPI with 3dTproject without the band pass filter option. Now, I am interested in calculating ALFF and fALFF with 3dRSFC.
Is it correct to use the band pass option in 3dRSFC in order to calculate fALFF denominator considering that the input EPI was previously detrended?

Thanks in advance,