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Old 05-31-2013, 03:02 AM   #8 (permalink)
SvdM
EcoModding Lurker
 
Join Date: Jul 2010
Location: South Africa
Posts: 85

Old but Gold - '87 Volkswagen Jetta CSL
90 day: 30.87 mpg (US)
Thanks: 9
Thanked 12 Times in 8 Posts
Looks like they're 'stealing' higher pressure (higher viscosity?) air away from the side-mirror?
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