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Old 10-08-2008, 05:19 PM   #5
Registered User
Join Date: Aug 2005
Location: San Diego, CA
Posts: 3,005
My Ride: '99 323i
There is no such thing as unique ZHP springs, there are only 330 springs. Exactly which springs were used depends upon the options that add weight to the car.

If you've already got the sport suspension on your 328, you are better off sticking with the springs you've got. If you do not have the sport suspension, bear in mind your drop will be somewhat less than 15mm on average with more in the front than the rear due to the differences in overall wieght and wieght distribution between the 330's and 328's
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