I firmly believe that vortex generators are a passive & practical way to reduce the wake on a three-box w/no roof obstructions. 
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1999 Audi A6 Avant Quattro - 2.8ltr 30v V6/Automatic - 149k miles
1993 Volvo 240 Wagon - 2.3ltr SOHC/Automatic - 323k miles
Last edited by SL8Brick; 01-14-2011 at 09:57 AM..
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