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Hi everyone, I've got a 2010 Aveo - I haven't made really any changes; K&N air filter, Low-rolling resistance tires, removed wipers and using Scan guage E. Could anyone advise me whether removing the rear plastic bumper would help? I don't really understand aerodynamics but this forum mentions mud-flap removal and the whole rear bumper looks like a giant parachute! Removing it would look terrible but would it help?
cheers
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