Yes! The majority of the music on Slipstream contains stems or versions.
The standard stems are:
drums
drums and bass
no percussion
lead instrument
the instrumental version of a vocal track.
Occasionally there are different stems available, but this is the standard grouping.
To see a track's stems click the music note icon on the track to reveal the available stems. You can download them there individually, or you can just click the download icon on the main track and you'll have the option to get the full stem collection there as well.