marinerbc

Hope to get some installation tips/advise , to be installed on 16 CTT

Part # 958 044 801 23

marinerbc

just had the dealer install it, the LED light did not work reportedly, but they found a jumper in the wrong position.
it was the first CTT spoiler replacement by the twin wing profile , not sure if it was a placebo effect or not.
at high speeds found the rear end adhesion to the road is greater, rear window did not get dirty as quick as usual.


Did some research online about the subject and found this study

https://www.matec-conferences.org/ar...2017_01027.pdf

marinerbc

i think the upper wing act as the positive angle in relation to the bottom wing, vs the zero inclination achieved by the stock turbo spoiler.

also here more technical aspects as of why the combo " twin wing profile " improve the drag and lift characteristics vs no spoiler or single wing " zero or positive inclination" type. in any yaw angle including condition..


https://www.researchgate.net/publica...t_of_Yaw_Angle

https://www.researchgate.net/publica...o-Type_Spoiler

Ali.S

i have a 2016 GTS, they don't come with this wing style on the face lift....for some reason

does this fit on top of the original spoiler without removing anything? or this replace it?

tmckenna

I thought this was standard with the sport design kit? Maybe only on the 958.1 (prefacelift). Odd that they excluded it from most/all facelift cars

marinerbc

the base spoiler stayed , that twin wing part goes in top after gets painted,

Ali.S

aha thanks for this info, i already ordered one and gave it to a shop to wrap it in carbon fiber

marinerbc

glad to help , please post a picture when it’s done , very interested to see the carbon fibre paint , cool idea I wish I had thought of that as I do have the carbon fibre interior kit .

Ali.S

will do!, not paint but actual wrapping. i'm a big fan of carbon fiber.

Porsche used "plastic" on many parts, especially the interior which makes it a bit cheap if you ask me
some pictures of my recent changes in the interior, working on on the exterior now

marinerbc

very nice , just wondering if Porsche came to add the real carbon fibre as in this build but for $ 12 K wow , just released 2021 GTS

z3mcoupe

Those were interesting links, thanks for sharing. I never considered the aero benefits of the dual plane spoiler, but assume Porsche would have done some wind tunnel testing to make sure it was most than just a visual treat for GTS owners. Car looks well equipped, I bet you can smell all that leather!

Quadcammer

This spoiler is doing nothing. Even if it added lets call it 50lbs of downforce, thats unnoticeable in a 4500lb suv that is generally driven on a highway.

If you like the looks, cool, but thats all this is.

Ali.S

hi, need your help on this!
i'm facing the same issue with the LED, it's not working for some reason even though its the same plug as the original GTS spoiler.

what did you mean about the jumper in the wrong position? , how did they fix it and made it work??

marinerbc

Hello Ali,

I did text the SA to ask about the details, as i mentioned originally that was he told me at the time., once i hear from him will let you know for sure.

Ali.S

thanks but managed to avoid the crisis. i asked the shop to connect the wires directly bypassing the plug and it worked!

no sure why the plug didn't work even though both are the same