MBX5 Shock tower question..

[freeagent]

Hey guys :)

I recently had the opportunity to pick up another mbx5 roller, with a whole schwack of spare parts. Looking at them side by side, I noticed the shocks are spaced differently, they are further set apart on one, compared to the other. Im sorry, but I am a noob to bugs and trugs, and Im curious if maybe the wider ones (right) are an upgrade, or something? Ill post a few pix so you can see what Im talking about