Will my arrow exhausts fit??

Hi all,
I got a pretty good deal on some arrow slip-on exhausts from a guys who took them of a 900.

I think they are pretty old (10 years or so judging by the date on the box), on the box it says they will fit 600/750/and 900.

Just wondering if they will fit my 2007 620 which i am guessing wasnt in production when the exhausts were made...

...and excusing my ignorance but if i do get them to fit could they do any engine damage, back up preasure etc


Thanks for any help