The carbon slicktop thread

[Epsilon]

While you can weld on an OEM slicktop, you can also use 3M Panel Bonding Adhesive. It's made to do just that, bond panels, and if applied correctly is more than strong enough to hold the roof in place and arguably better than welding. This is what I'm planning on doing with my PY car since I want the roof body color, and painting the carbon panel seems like a waste of money when you can get an OE metal one half the cost. I also don't have to worry about getting the carbon panel perfectly flat/prepped for paint since the OE metal panel is, well, its an OE panel prepped for paint.

Where would you order an OEM slicktop roof panel at a reasonable price? ECS shipping and taxes make it about the same cost as a carbon one shipped from Karbonius.

[terra]

Cant recall but arent OEM diffusers fiberglass with the carbon fiber flares? The roof being upfront for all to see i feel it would be more notable of a difference if painted. I'm actually surprised someone wants to paint the carbon in the first place

Nope, they're 100% CF.

[liam821]

Cant recall but arent OEM diffusers fiberglass with the carbon fiber flares? The roof being upfront for all to see i feel it would be more notable of a difference if painted. I'm actually surprised someone wants to paint the carbon in the first place

Raises hand. I just like a body-color roof. Thats why I'll probably do a metal roof when the time comes.

[JeST]

Painted bits of CSL diffusers generally look okay, especially in OEM guise.

Cant recall but arent OEM diffusers fiberglass with the carbon fiber flares? The roof being upfront for all to see i feel it would be more notable of a difference if painted. I'm actually surprised someone wants to paint the carbon in the first place

[Ob917]

I think this is one external mod that I really want to do, plus it's hard to argue the benefit of that weight savings up above your head. And no paint work needed is a big plus.

[terra]

A painted carbon fiber panel will never (that ive ever seen) match with the rest of the body. The characteristics of the weave under the paint ...

Painted bits of CSL diffusers generally look okay, especially in OEM guise.

There is no link or part number referenced in the first post for the Wurth Glue that can be used - does anyone know what it is? I finally have a Karbonius CF Roof Panel and will hopefully soon be getting my hands on a slicktop headliner so I am trying to scratch together the remaining bits...

I'd probably use the glue that BMW uses on the E9x. I believe it's this stuff: https://www.ecstuning.com/b-genuine-...l/83190417144/

[Obioban]

Can anyone confirm that the CF rood does in fact increase headroom? I have a huge head and thus a huge helmet, with little to no clearance with a sunroof. It makes sense that it would. Is there a manufacturer that someone has recent experience with that has good fitment? I would think Karbonius would be solid but who knows.

No sunroof, plus no sunroof headliner, gives you almost an inch of head room.

Seats plus slick top were transformative to my on track seating position. Instead of having to recline to fit, I now give no thought to head room.

[mainstreamer00]

Can anyone confirm that the CF rood does in fact increase headroom? I have a huge head and thus a huge helmet, with little to no clearance with a sunroof. It makes sense that it would. Is there a manufacturer that someone has recent experience with that has good fitment? I would think Karbonius would be solid but who knows.

You gain headroom. I’d google for the exact amount, but it’s about as deep as your sunroof cassette.
Karb fitment is great - as is their quality/finish.

[Fresh1179]

Can anyone confirm that the CF rood does in fact increase headroom? I have a huge head and thus a huge helmet, with little to no clearance with a sunroof. It makes sense that it would. Is there a manufacturer that someone has recent experience with that has good fitment? I would think Karbonius would be solid but who knows.

[JeST]

Would anyone trust this brand. I personally will not be installing but It’s a group buy for a carbon 2x2 weave

Diogo from AMS says theyre a pretty good brand. Not a fan of the 2x2 weave though

[Jersey_M3]

Would anyone trust this brand. I personally will not be installing but It’s a group buy for a carbon 2x2 weave

[Albino09]

I think if I had an AW/Silver/Black/IB I might roll with a CF roof, but for PY/Imola/LSB the roof body color looks better IMHO. Somebody posted some pictures of a slicktop conversion done on an Imola on M3F just before the site when down and it looks fan-fn-tastic.

See, I'm the opposite. I think the bright bold colors are the perfect choice for a carbon roof pairing. Then the roof choice really *pops* against the bright paint work. A CF roof on a TiAg or SG car is nice and stealth though.

[STAATS]

There is no link or part number referenced in the first post for the Wurth Glue that can be used - does anyone know what it is? I finally have a Karbonius CF Roof Panel and will hopefully soon be getting my hands on a slicktop headliner so I am trying to scratch together the remaining bits...

[JeST]

You're probably right if you look at it like that. The metal roof is heavier by like 5-10#s, its also heavier in all the wrong places. I've heard rumors that Lang has in the past sold CF roofs that weren't perfect at a discount - so finding something like that might work great since you're going to paint over it anyway. It's a project I want to work on next winter.

A painted carbon fiber panel will never (that ive ever seen) match with the rest of the body. The characteristics of the weave under the paint ...

[terra]

CF also has some noise advantages when it's raining and such.