does anyone know the group size of the xb battery? the reason i am asking this is i am talking to anoptima rep and he needs to know the group size of our battery to get me the right one for what im using it for. thanks.

group size is "mt-25"

where did you find out about the group size?

dude, it's either a 34 or 35. i can't see the top cause i have a billet cover on top of it now. tell the optima guy it's the one where the posts are almost to the end (meaning wider). you need it wider cause the bracket that is standard on the xb will only got about 1 inch from the side of the battery. ithe bracket is not adjustable.. i have no idea what a mt-25 is. the group size is standard for all batteries.

dude, it's either a 34 or 35. i can't see the top cause i have a billet cover on top of it now. tell the optima guy it's the one where the posts are almost to the end (meaning wider). you need it wider cause the bracket that is standard on the xb will only got about 1 inch from the side of the battery. ithe bracket is not adjustable.. i have no idea what a mt-25 is. the group size is standard for all batteries.

*cough* he's right. Ya'll are making this battery thing way to diffacult. Just drag your hide down to PepBoys and buy the damn thing. They'll have it in stock. I peeled all the stickers off before I put it in it's billet battery cage (holds much better than a plain old tray) - but that's not important - just go and buy the darn thing. Making it 10x harder than need be.