red04svtcobra Posted September 13, 2008 Report Share Posted September 13, 2008 I just bought a Z2 and was wondering what is the main difference between it and the Z3. I have read that I could upgrade to the Z3 by buying a CD and download it to the unit. Then I have heard about replacing the HD with the Z3. What gives, which is better or am I not understanding this right. Quote Link to post Share on other sites
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