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Old 03-20-2007, 03:55 AM   #17
insite
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Join Date: Sep 2004
Location: Atlanta
Posts: 1,820
the oem hats are zinc plated and tend not to rust. the aftermarket zimmermans don't have paint or zinc plating on the hats. they rust quickly.
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insite
'99 Boxster
3.4L Conversion

http://i156.photobucket.com/albums/t...1/KMTGPR-1.jpg
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