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Aero Fenders [ Project-G ] – 1990-1997 Mazda Miata


Project-G Aero Fenders for NA
$750 MSRP

Mazda Miata 89-97 (NA)


From late 2010 Project-G started down a slow road to their vision on the front fenders for the NA out of necessity. First concentrating on the top profile to get the look we were after, and at the same time gaining the clearance we needed. Mid 2012 hit and one of the fenders suffered some damage, so it was time to get busy on this ongoing project.

To the unsuspecting observer, the fenders look to be factory. To the enthusiast, there is a lot going on here. They swallow up 15×9 +0 wrapped in 195/50’s with ease. (15×9-8 pictured) We kept the edges smooth and clean as to minimize the chances of catching a tire on the lip and shredding some expensive rubber or even worse, ruining a fender.

Our recess behind the wheel was conceived with our corner flare in mind. We feel the compliment each other rather nicely and add to that subtle, aggressive look we are always after.

Weight Savings:
OEM Fender = 6.4 lbs each
Prototype Fiberglass Fender = 2.1 lbs each

*These are produced to order, ETA on shipping is approximately 21 days.



G-Shield Lightweight Formed Hardtop Window [ Project-G ] – 1990-2005 Mazda Miata


Project-G G-Shield Lightweight Formed Hardtop Window NA/NB
MSRP $400+up (depends on configurations/options)

Mazda Miata 89-05 (NA/NB) Genuine OEM Mazda Hardtop Only(not designed for replica/aftermarket hardtops)


This lightweight formed hardtop window is a must for anyone who would like a more aggressive look on their hardtop, OR just to shed some weight. Our G-Shields come already shaped and formed like the factory glass except at a great savings in price AND weight.

Professional installation required. Local shops in our area charge between $35-45
(Pictures above show our G-Shield installed without any molding). The window is designed to be GLUED IN PLACE like glass. The hardware around the perimeter is ONLY for decoration. We do not advise using only hardware to secure the G-Shield although many have used it this way.

• Low cost option to OEM glass (50% price savings)
• Lightweight Reduction (OEM Glass is 12lbs vs G-Shield is under 4lbs)
• Increased ventilation
• Aggressive Look


Blank G-Shield (No Holes)







6 OEM Holes Only




6 OEM & Perimeter Holes


Full Option (6 OEM , Perimeter Holes, Vented)


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