The Ultimate OEM Aero Kit Side Skirt Analysis

NashFX

Member
Car
2012 FX35 AWD Tech-Premium Pkg
If you are in the market for the OEM Aero Kit you've probably considered getting the complete kit or perhaps the front or back. You may even be like me and started with the front and eventually worked your way towards the back. The sides have always been an afterthought for me. Having a black car, I initially thought that not getting the aero sides would not be as noticeable; and I wanted to keep the factory mud flaps (which are lost when you add the sides). Eventually, I added the back to match the front, and as a result, I lost the rear mud flaps. Pretty soon I was down to just the front mud flaps with no rears and wondering if getting the sides would complete the look, or if the kit becomes discontinued will I regret not getting the sides. In an effort to not live with regrets I went for the aero kit sides to complete the look, but not without doing some experimenting first. From the available research that has been posted online, It is thought that the side skirts will not work without a door molding. I wanted to test this theory because the door moldings cost more than the actual side skirt, which I find to be interesting in itself. I wanted to share my experiments and the outcome of my research here with the community. Hope that you enjoy!

I read that if you do go with the side you need two components for it to work and look correct. Only the second part is technically true, you can actually get away with the side skirt only, more on that below.

The two parts are:
Door Under Molding Online Price - $580.00 Part #: H08G0-1CA3A
(This part goes on the doors)

Side Sill Protector Online Price - $475.00 Part #: G68E0-1CA3A
(This part goes under doors, is the actual side skirt)

If you are still deciding you can check out the kit here. Use coupon code Estore2019 to save 25% and save on shipping if you pick it up from your dealer. Also, it is worth noting that some dealers have this kit for less such as INFINITI OF MONTCLAIR MONTCLAIR , CA zipcode 91763. If you order from them you would have to pay something in shipping but you can save an average of $50 for each part of the aero kit that you buy.
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I did not see any examples of how the sides would look without the actual door under molding that is attached to the doors. Here are a few pictures to provide an idea.

This is the side sill protector without the door under molding.
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As you can see the replacement side sill sticks out a little and the chrome strip is wider. As a result of the side sill sticking out some, the replacement door under moldings flares out to create a more flush look with the new side sill.

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Here is the difference with the replacement door under moldings, these are also painted gloss black to match the side sills, whereas the original ones where matte black.
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Lastly, if you are the risk-taking kind, there are knock-off replicas that I have found here. I question the fitment with the replica because it looks like based on the pictures the actual side sill protector that goes on the doors is not included. I am skeptical how this would work because part of the chrome strip is built into the actual side skirt, and the replica does not seem to have that.

Finally, here are some pictures before and after, with mud flaps, and without. The verdict for me is... I still think it looked fine without the sides, but if you are a perfectionist and want to complete the look, and do not care about mud flaps, then go for the sides (I finally did) and if you do, get both the side sills and the under molding.

Before
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In between:
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And After
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As for next steps, I am going to experiment integrating mud flaps with the aero kit, the OEM ones are no longer compatible, but there are aftermarket ones made by Rally Armor that look like they would work. More to come on that later.
 

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Nice thread. I had previously seen images of where chrome strip on the door sills didn't line up with the chrome strip on the side skirts, and thought it may have been the result of the vehicle model (base versus sport). But this clears up that little mystery.

Like you, I'm debating the full OEM kit (I have the front lip only). Also debating keeping the factory sides but taking them off to paint them to match the gloss black of the OEM paint. Either way, nice looking ride!
 
Nice thread. I had previously seen images of where chrome strip on the door sills didn't line up with the chrome strip on the side skirts, and thought it may have been the result of the vehicle model (base versus sport). But this clears up that little mystery.

Like you, I'm debating the full OEM kit (I have the front lip only). Also debating keeping the factory sides but taking them off to paint them to match the gloss black of the OEM paint. Either way, nice looking ride!
Thanks Sean, exploring what to do about mud flaps now. Looking at options from Rally Armor that would work with the aero kit without detracting from the overall look.
 
Great write up :tup:

I will be getting the front aero lip this spring, but now you got me considering the full set up.
 
This thread and a few other similar ones helped me with my research and eventual purchase of the aero kit parts. So thanks. It may be old news to some but as new owners like myself come along these sources of info are good to have. As mentioned long ago in some of the even older threads......these parts are hard to come by now. I think the aero kit look is so classic that it doesn’t go out of style for me. I had to have it for my FX. I checked with the online Infiniti parts dealers but none could get the parts. I then turned to the Tampa Infiniti dealer and for some reason the parts guy thought he could get the aero kit parts. I had my doubts but after four days or so he told me he was able to get all except the side skirts (side sill protector). At first I said forget it.....then decided to just get whatever they had and scrounge for the rest. Wasn’t so bad since I was able to get the front lip (which is the main part for looks), the door under molding (beyond me why these little pieces cost more than the huge side skirts) and the rear parts. All I needed was the skirts now and could get away with what I had if I really wanted to mount it up now. All parts are in my color (Umbria twilight). I started to go the EBay Russian parts route for the skirts but in talks with the seller he confirmed that his side skirts don’t have the trim to match the trim on the door under molding so I passed. There was however a EBay seller with a set of brand new side skirts but in a different color. Not my first choice but since it’s new and so hard to come by I went ahead and bought it. I’ll just have to get it painted.
 
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