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Discussion Starter #1 (Edited)
When I ordered my ATS-V sedan last year I chose not to get the carbon fiber package because I was concerned about busting the splitter in front since it is so low and brittle. However, I wanted the higher carbon spoiler in back. I located one from maverickmancarbon that appears to be a quality product that mounts using bolts through the OEM spoiler mounting holes in the trunk lid - not just a double sided foam tape installation (I'd hate to have the spoiler fly off at 140MPH). Although maverickmancarbon shows the spoiler as "Sold Out", when I contacted maverickman, they told me to check back in a month because they will be making more.
Here is a link to the product:
https://www.maverickmancarbon.com/products/carbon-fiber-spoiler-w-wickerbill-for-the-cadillac-ats-v-sedan-and-coupe?variant=17836712886370
Here is an excellent install video:
Maybe I'll have a new spoiler in a month or two...
Enjoy.
Roy.
 

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I've been eyeing those for a while! Glad to hear that they will be making more. If the stars align, I might have some spare cash in my automotive budget around the same time so I can pick one up as well.

PS: I've been flirting with an idea of adding rivnuts to my OEM spoiler and making a removable see-through plexiglass spoiler extension similar to MaverikMan design. Carbon Fiber is much cooler, but I have concerns about rear visibility.
 

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Discussion Starter #3
I've been eyeing those for a while! Glad to hear that they will be making more. If the stars align, I might have some spare cash in my automotive budget around the same time so I can pick one up as well.

PS: I've been flirting with an idea of adding rivnuts to my OEM spoiler and making a removable see-through plexiglass spoiler extension similar to MaverikMan design. Carbon Fiber is much cooler, but I have concerns about rear visibility.
I guess you can make a plexiglass wicker bill to replace the Maverickman carbon one if it obstructs your view. It looks like the carbon spoiler without the wicker bill is not much higher than the stock unit.
 

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The carbon spoiler certainly looks great. Unlike the carbon spoiler from the factory, it is unpainted, and even taller, significantly so compared to the non-carbon spoiler. Please note that a) it will significantly increase rear downforce, and b) it will increase the co-efficient of drag. At high speeds, the increased rear downforce will change the attitude of the car, resulting in decreased down force in the front, or even possibly cause lift, and that could compromise high speed handling, even in a straight line. High speed wander and increased crosswind sensitivity can ensue, not to mention decreased grip in high speed corners on the track. Further, the increased CD can limit top speed, and increase highway fuel consumption. The rear visibility will also be reduced, considering even the base spoiler is visible in the rear-view mirror, but probably not critically so. At normal highway speeds, probably not much of an issue, though. I personally would be wary of such a set-up at 140 mph, especially with the base splitter. But it certainly looks good.
 

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I just got one of these for my sedan. The hardest part of the install was getting the old spoiler off. Otherwise, super easy to install. Quality is great. Looks awesome. It is certainly taller than the stock spoiler, but not by much. It does not obscure the view in the rear view mirror at all. I have not noticed the car getting out of shape at speed yet, however I've only been up to 130 mph or so thus far.
 

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I just got one of these for my sedan. The hardest part of the install was getting the old spoiler off. Otherwise, super easy to install. Quality is great. Looks awesome. It is certainly taller than the stock spoiler, but not by much. It does not obscure the view in the rear view mirror at all. I have not noticed the car getting out of shape at speed yet, however I've only been up to 130 mph or so thus far.
If you installed it first not knowing how it would affect aerodynamics it probably doesn't matter since you really just wanted the look. I myself would not have messed with anything that affected the aerodynamics of the car because the factory has this car dialed in. Any changes that were made we have to be purposeful.
 

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If you installed it first not knowing how it would affect aerodynamics it probably doesn't matter since you really just wanted the look. I myself would not have messed with anything that affected the aerodynamics of the car because the factory has this car dialed in. Any changes that were made we have to be purposeful.
You're absolutely right. I did want it for the look. I'm not racing around the Nurburgring here. I do not drive the car hard enough nor in a manner to truly make downforce matter. But I'll be sure to let everybody here know first if my car starts doing a wheelie while going down the interstate.
 

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Actually, our cars are balanced aerodynamically. The base splitter/spoiler reduces lift, which is the same thing as down force, except it may not actually press harder into the pavement, just less lift. The aero package does increase downforce. I got to try both configurations at the driving school, and the carbon package notably digs in and handles better at high speeds, like 100 mph (not a really high speed track, actually). The bigger spoiler will add downforce, and if not balanced by a bigger splitter, there will be relative lift on the front, and there will be a loss of front grip at high speeds. The front will rise a bit as the back end presses down. Try an older 911 at speed; the front wander can be terrifying, due to relative lift at the front (the front of the car is shaped like an airfoil). It may not be noticeable on the highway, but a real corner at those speeds will definitely show it. This is why serious sports cars get more aggressive spoilers both front AND rear; it has to be balanced. Not an issue for most at normal highway speeds, though.
 

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The carbon spoiler certainly looks great. Unlike the carbon spoiler from the factory, it is unpainted, and even taller, significantly so compared to the non-carbon spoiler. Please note that a) it will significantly increase rear downforce, and b) it will increase the co-efficient of drag. At high speeds, the increased rear downforce will change the attitude of the car, resulting in decreased down force in the front, or even possibly cause lift, and that could compromise high speed handling, even in a straight line. High speed wander and increased crosswind sensitivity can ensue, not to mention decreased grip in high speed corners on the track. Further, the increased CD can limit top speed, and increase highway fuel consumption. The rear visibility will also be reduced, considering even the base spoiler is visible in the rear-view mirror, but probably not critically so. At normal highway speeds, probably not much of an issue, though. I personally would be wary of such a set-up at 140 mph, especially with the base splitter. But it certainly looks good.
While I agree that all aero changes need to be properly balanced, I think you are severely overestimating the effectiveness of this spoiler :)
 

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An old Jalopnik post, which referenced R&T, mentioned 100 lbs @ at 150 mph for the CF kit. They also did not mention if it was coupe or sedan, but there probably isn’t a significant difference between the two.


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