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Old 09-30-2008, 09:31 AM   #2 (permalink)
lunarhighway
Master EcoModder
 
Join Date: Feb 2008
Location: belgium
Posts: 663

vectra a - '95 Opel Vectra GLS
90 day: 37.51 mpg (US)
Thanks: 14
Thanked 60 Times in 43 Posts
it's difficult to juge a feeling but i remember my partial bellypan really felt different the first tim i had it on, the car seemed much more quite and felt much smoother. the car does about 2 mpg's better than before although it's difficult to pinpoint the exact improvement.
another benefit is that the engine stays much cleaner.
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