I am borrowing my friends 2003 G35 SEDAN EIBACH PRO KIT SPRINGS and was wondering if I could put them on my 2004 350z with 19" wheels without having problems.

-Can it even be done at all?
-Will it mess up my shocks?
-Do I need an alignment afterwards?
-Can I expect a stiffer/softer ride?
-How will it affect performance?

Any help will be GREATLY appreciated. Thanks!

-sam.
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