Battery Relocation

Depending on what you have, your battery will weigh about 45 pounds. On the passenger side is where you want to put it. Yes it is beneficial to do it, it helps weight transfer (every little bit). You are buying or have mag wheels, right. You buy them for the same reasons, they are lighter and they look cool, and all other things being equal - they help you go faster (every little bit)
Daryl