This is the combination I have fitted to my S3. It fits no problem. Depending on the angle of your Revo going round the bend by the battery, you may need to bend the Neuspeed plate down a centimetre for total clearance. Cannot tell you if there are any benefits as I have always had both parts installed.
Remember, there are 10 ml nuts holding on the air box supports underneath that you cannot see but you can feel and you need a long reach 12 point socket to undo the air box supports if you want to avoid chewing them up.