Best Tires 2005 BMW X5 on 22inch rims

[mrtuks]

Hi Guys, I'm quite new to this and this is my first post . I need some advice. I have a 2005 BMW X5 4.4i Sport on 22 inch rims with 285/35/22 tires all round. I want to change the tires to a staggered option. What are my options for both front and rear? whats the max width i can fit both front and rear without any errors? Has anyone in this forum fitted 315/35/22 in the rear? How is it. Thanks guys.