G-Vents Vented Wing Window [ Project-G ] – 1990-2005 Mazda Miata


Project-G G-Vents for NA/NB
$120 MSRP (Set of 2)

Mazda Miata 89-05 (NA/NB)


Vented Wing Windows
To compliment our new G-Shield Hardtop Window, we are also bringing to you our G-Vents (Vented Wing Windows).

This is NOT a Project-G original, but we have changed it up to be fall in line with our other products. Rather than using polycarbonate that easily scratches and yellows with time, we decided to finally just come out with a Project-G version which will go hand in hand with our G-Shield. We have chosen to use a slightly larger vent and an updated vent location when compared to the others.

Our findings when this product is paired with our G-Shield, the airflow through the passenger compartment is very smooth and calm even at speed.

As for being watertight, in normal rain or washing the car, we haven’t noticed any leaking. However, if you blast the water directly on the vent, some may get in. Nothing we were concerned about. We have not noticed any whistling or air noise in our testing for the past 6 months.

Installation is fairly simple. (It took me less than 1 hour to do both sides) Instructions to change the corner glass can be found on the web.

Benefits of G-Vents:
More scratch resistant
Can be polished if scratched
UV Stable (Resists yellowing)
Vents are 3.25 dia vs. 3.06 dia.

Weight Savings:
OEM Wing Window = 1.00 lbs
G-Vent w/Vent = 0.45 lbs



For this version we have decided on 1/8″ Acrylic. We had also considered using Polycarbonate, but after carefully weighing the pros and cons of both, we feel very comfortable in our decision. We had also consulted with our former who also makes windshields for various other applications and he was in agreement with us. The fact this is a rear facing window, did also have some influence on our decision.

The fact that both Acrylic and Polycarbonate are both more impact resistant than glass made us also take a look at the other properties possessed by both. The key features were:

Acrylic has better optical clarity
Acrylic is UV stable and does not yellow with time (Longer lasting product)
Acrylic can be restored by polishing if scratched (Longer lasting product)
Acrylic is more cost effective

For more information on the differences between Acrylic and Polycarbonate:
Properties of Acrylic and Polycarbonate

*These windows are not left/right specific, you just install the vent accordingly

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Additional information

Weight N/A
Dimensions N/A

1 Side, Both Sides (Set of 2)