ok i was just checking to make sure. I have the older 3200 Team orion pack with the bumps. I did dremel my car to fit it and have been using this pack ever since the S400 first came out. But im comparing the size specs of the newer packs. So they will indeed fit as is! Thank u guys for ur help and Team Orion for making them the same size!! The problem im having with my current pack is when i check the voltage from the pins and the balance connector im getting voltage on one cell only. I loaned the pack to someone for a race and he said it didnt work on his car. So im going to open the cell now and see what i can find out. Will keep u guys posted.