New answers tagged car
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Remove the bolts/screws that hold them to the floor.
3
If those flaps weren't there, the airflow underneath the car would hit the rear tires and introduce a certain amount of drag. The manufacturers put those flap there as a wind break.
If you took them off, you wouldn't notice a difference driving around town but if you were on the freeway travelling high speed and for a decent distance, then you might notice ...
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