xxxPaulxxx

Want to change die diffusor of my GT C to the one of the GT R, s.b. knows if I just have to change the diffusor or also the bumper? For sure I would need a new exhaust with additional middle exit.

Skilly

GTC bumper *should* work, but there are 6 versions of it from a parts number perspective. It has variables for paint, rear camera, and PDC. The GTC has a single part number.

• GTC part number: A190-885-44-00
• GTR part number: A190-885-72-00 (unpainted w/ PDC option.
• GTR part variations: *71-00, *74-00, *84-00, *97-00 etc

Keep in mind, the GTR relocates the reverse light to the rear spoiler and this is not the same size or fitment as the rear brake (like the aftermarket spoilers formfactors). Along with as you mention, needing a different muffler. This isn't an easy swap - lots to consider and expensive even with sourcing used parts.

xxxPaulxxx

as I'm also changing the spoiler to the GT R one, the light would not be the problem. Would be interessting what parts would be needed except the exhaust.

Skilly

There are links about the subject and they contain parts diagrams and part numbers - just do a search. To relocate the reverse light into the spoiler base, your only option will be OEM parts. For the amount it's going to set you back to change the exhaust, GTR diffusers, tips, and GTR spoiler parts, it will be cheaper for you to go and purchase a GTR.

xxxPaulxxx

not for a roadster, here in Germany there are just a few available for about 250k €.

Skilly

roadsters are rare. I did the wing add.

xxxPaulxxx

yes saw your thread. and also orderd the parts!
Think than I will buy a aftermarket diffusor if avilablle for GT C ..let's see what RW Carbon will offer

Saudio

Hey Skilly. I'm picking up a GTC roadster on Monday and I'm interested in what was involved with adding the wing. I looked for a thread for this but didn't see one. Any help?

Curious about adding the wing, and also wondering about how it would affect the car at high speed.

Thanks

xxxPaulxxx

https://mbworld.org/forums/coupe-roa...nvertible.html here you go

Skilly

looping in @RW Carbon ...we are eagerly awaiting your GTC parts!! I need a good diffuser!

xxxPaulxxx

yes right me 2! and a good frontsplitter would be also nice

Saudio

Thank you!

Saudio

Not to change the subject but has anyone had experience with an aftermarket bolt on wing that would not require wiring? A simple replacement for the pop up wing on a GTC? I've looked around and have not seen anything with detailed information about installation.

I would be interested in a carbon fiber, unpainted wing.

Thanks.

xxxPaulxxx

Yes there is a Germany Company selling a wing where you don't have to weier it and the other wing also works beneath it but I don't like it.

http://shop.piecha.com/tuningprogram...w190/index.php

Saudio

I see what you mean. It looks a little cheap.

This one looks interesting but there is almost no information about it on the website except the pics and price.

Paul, do you know if a GTC coupe and roadster would use the same wing?

https://darwinproaero.com/collection...32730271907937

Skilly

They do not. The wing and the base are not interchangeable. There is no wing available for the Roadster except the factory GTR wing.

xxxPaulxxx

I know the baseplate is different of shape, also the part number of the spoiler itself is different but I can't believe that they would produce two different spoilers.

Skilly

They do indeed. The Roadster has the brake light built into it. Additionally, the spacing for the mounting points for each spoiler set up is different. They are not compatible at all.

xxxPaulxxx

Oh also the mounting points are different? Okay good to know

Saudio

Very interesting. Thanks for the information gents.

RW Carbon

Working on the diffuser still. Front lip is done basically

Skilly

As we wait, I also found an OEM source for the carbon diffuser for $2,046.00 - this an MB sourced part.

Skilly

does your design clip in like the OEM or is this a double sided tape add on? With the air fins, it looks like the centerpiece lays over the middle section.

RW Carbon

The Lip is being designed to be installed the same as our GTS Lip. Secured using only self-tapping screws threw the underside of the bumper.

mbjj57

Nice.

how much?