Axxis lists the same pads for the 2007-2008 E70, whether it is a 3.0 or 4.8.

I would also prefer matching pads front and rear, but I would suggest you put the Axxis pads on the front first, and solve most of the dust problem, while determining if brake balance front/rear has been negatively impacted.

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2007 X3 3.0si, 6 MT, Premium, White

Retired:
2008 535i, 6 MT, M Sport, Premium, Space Grey
2003 X5 3.0 Steptronic, Premium, Titanium Silver
2002 325xi 5 MT, Steel Grey
2004 Z4 3.0 Premium, Sport, SMG, Maldives Blue