S2000 Anti Buffeting Wind Deflectors
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CFD Analysis of S2000 with Air Deflectors Installed
s2000 wind buffeting air deflectors
s2000 wind buffeting air deflectors
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S2000 Anti Buffeting Wind Deflectors
IMG_8974.png
CFD Analysis of S2000 with Air Deflectors Installed
s2000 wind buffeting air deflectors
s2000 wind buffeting air deflectors
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S2000 Wind Noise Reducer and Anti Buffeting Air Deflectors

$35.00

Window deflectors to help reduce the aggressive wind buffeting that occurs when driving with the windows down on S2000’s. While the buffeting doesn’t result in painful acoustics, a lot of wind still gets into the cabin and creates a parachuting effect. This is very noticeable at high speeds on track days.

Also, very effective in reducing wind noise with the windows up when a hard top is on. Redirects air from shooting into the small pocket on the rear most edge of the window where the hardtop meets the window molding.

Below you can find the CFD Analysis I ran on an S2000 model with and without the deflectors installed.

Attached with included 3M VHB Double Sided Tape. Sold as a pair.

Material: ASA Glass Fiber Reinforced

Made in California

Window deflectors to help reduce the aggressive wind buffeting that occurs when driving with the windows down on S2000’s. While the buffeting doesn’t result in painful acoustics, a lot of wind still gets into the cabin and creates a parachuting effect. This is very noticeable at high speeds on track days.

Also, very effective in reducing wind noise with the windows up when a hard top is on. Redirects air from shooting into the small pocket on the rear most edge of the window where the hardtop meets the window molding.

Below you can find the CFD Analysis I ran on an S2000 model with and without the deflectors installed.

Attached with included 3M VHB Double Sided Tape. Sold as a pair.

Material: ASA Glass Fiber Reinforced

Made in California

CFD Particle Analysis of an AP2 without the deflectors installed. You can observe the streamlines passing the A-pillar remain relatively tight and "undisturbed" as they hit the side of the protruding edge of the hardtop.

On the stock configuration, as the freestream air hits the windshield and spills outward around the A-pillar, it gets channeled between the A-pillar itself and the side mirror housing. This physical pinch-point acts like a nozzle, accelerating the air. That red strip is a high-velocity jet (nearing that 20 m/s mark) shooting straight back along the window opening.

The buffeting you feel inside the car is caused by the extreme speed difference between that violent, fast-moving jet of air and the relatively stagnant air inside the cabin. That boundary (the shear layer) is highly unstable and collapses, throwing vortices right at your head.

CFD Particle Analysis of an AP2 with the APX Air Deflectors installed. You can see a noticeable "lifting" and outward displacement of the green streamlines right at the window line. This indicates a physical barrier (the deflector) is pushing the air away from the cabin opening.

The air now traveling past the side window (towards the B-pillar line) is entirely in the yellow/green zone, meaning it has slowed down significantly to around 10–14 m/s.

A slower shear layer means a much more stable boundary between the outside air and the cabin, which translates directly to a massive reduction in wind buffeting for the driver. It's a highly effective aerodynamic intervention.