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Old 05-09-2011, 01:47 AM   #5
Alex323Ci
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Join Date: Jan 2005
Location: Huntington Beach -Surf City USA
Posts: 17,141
My Ride: M3 & 323Ci (sold)
oem spring are going to be powder coated. which are much better and stronger paint protection than any basic rattle can Rust-oleum . I'd just make sure you have decent bottom rubber spring pads. When the spring pads wear through the metal and touches the aluminum it can exacerbate premature failure. But stress is the main culprit.
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