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Discussion Starter · #1 ·
I heard that the rear spring rates change to 427 from 342 with the Euro Suspension in 2004.5

This big a change- 25%. I would expect this to go with and increase in front springs or sway bar, or reduction in rear sway bar.

I have an 05 and a friend with 03 and we have driven each outhers cars for over
700 miles and neither of us notice any difference in ride or handling. I might miss small changes but he has racing experience.

Anyone out there able to provide the details? I have been looking and this is all the numbers I can find.

2004 350Z roadster oem spring rates

2003 350Z oem spring rates

2005 G35 coupe with sport suspension (oem 19's ONLY)
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