Thread: Rear diffuser?
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Old 09-09-2022, 01:35 AM   #86 (permalink)
Phase
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Black Bullet - '19 Hyundai Ioniq Hybrid Blue
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Quote:
Originally Posted by aerohead View Post
On the Audi 100-III it was good for delta Cd 0.010. ( Cd 0.23 if the Hyundai responded the same )
Filling in the rest, with the sub-3-degree diffuser, on the Audi was good for another delta-Cd 0.020 ( Cd 0.21 perhaps for IONIQ )
Your skirts get you to your target of Cd 0.20.
I officially have the passenger side mirror removed permanently and using abs plastic with weather stripping so it looks really flush. Drivers side mirror comes on and off depending on car washes and city driving versus long highway trips and so on

2 extra mpg happens with 1 cd drop. I def need to clean up the bottom front under tray and the whole middle shaft
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