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Old 01-07-2021, 10:26 PM   #9 (permalink)
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Originally Posted by MeteorGray View Post
I "assume" gurney flaps in front of the tires help.

My 2015 Mazda3 has them in front of all four tires. I doubt Mazda put them there unless they help fuel economy enough to justify the cost.

I doubt I could discern any mileage degradation if I removed them from my car because of my inadequate ability to test, but I'd bet dollars-to-donuts that Mazda saw an improvement when they designed the car.
Could you post a picture of them? About how far do they stick out from the body?
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