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Old 19th February 2019
SilentJ20 SilentJ20 is offline
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Join Date: Mar 2016                                                
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My Saabs: 2007 9-3 2.0T Manual
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I wouldn't have thought downforce in the front would be a big issue. At speed, usually it's the back end that tends to lift on most cars.

The little roof vortex generators can help a bit with rear downforce by delaying the flow separation. Might slightly improve mileage, too.

If you need/want more downforce overall for traction and racing, well, that's a whole 'nother ball o' wax.
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