I don't see any benefits unless you are running something with a ****load of clamping force. Otherwise it's just going to take up room, be a PITA to mount the slave and bleed it. There's not a lot of room in the trans tunnel for a slave cylinder. Only other benefits I can see is you don't have to adjust it, and it will be a little bit quieter (except for the knocking/thudding of the slave cylinder on the trans tunnel when you go over bumps or give it a bootfull of throttle)