Product Reviews

Carbon Fiber B Pillars by oCarbon for my Audi A4

A nice custom touch from the guys at oCarbon

My friends over at oCarbon have done it again – my B Pillars are now wrapped in the same 5HS carbon fiber that my interior & front filler plate are done in, and they came out awesome.

I’m really stoked with how these came out – while I didn’t think it’d be a very noticeable part at first, it turns out the very opposite is true.

I see these every time I open the door, which means I’m greeted with carbon fiber awesomeness before I even get inside.

The funny part is I just had a guy at a gas station ask me where I got these done as he liked it so much! Of all the mods done to my car, these stuck out at him the most!

I took this picture to show how nicely it ties together with the interior trim:

Carbon Fiber B PIllar & Interior Trim

Another really cool part about these is that they’re relatively subtle from far away. From a distance, they look pretty similar to the OEM gloss black finish – they blend right in for a very clean look. It’s only when you’re up close do you really see how slick these are, which is what I love about them.

To make these, they take the OEM B-pillars and wrap them in raw carbon fiber material, which starts out as a soft fabric much like a blanket. They have to stretch and wrap the part just perfectly, then apply a resin to harden the carbon fiber and make it super strong. Once the resin has cured, then begins the hard work of finishing it. They start by sanding it, then applying clear coat, then another round or two of sanding and polishing until it is absolutely perfect. It’s a very manual and labor intensive process, but the outcome is worth it for the depth and clarity of real carbon fiber versus any vinyl imitation products out there.

To install or remove the B-pillars, it’s quite simple. Simply open the driver’s door and you’ll see there are two small torx bolts holding it on from the bottom. You’ll have to pop off a plastic cover to expose the bolts, but then they’re easily removed with a torx bit (T20 if I recall correctly) turning counter-clockwise. Once you’ve removed the bolts, pull down and out and the B-pillar cover should come right off.

From there, ship your cores to oCarbon (or buy spares and have them wrap the spares) and when the oCarbon carbon fiber B-pillars are ready, simply follow the reverse process to reinstall the new ones. All in all, it should take you about 10 minutes a side.

Whenever you remove a part like this, I always recommend cleaning behind it to keep the car insanely clean. Ideally you should use something with a little built in wax or hydrophobic properties to keep dust or dirt out of there in the long term, as it’s unlikely you’ll ever have the need to remove your B-pillars again.

Thanks again to oCarbon for the great work – I love that they let me choose the fabric & weave pattern of choice. Right now, I’m the only Audi running 5HS fabric (each strand of fabric goes over 5 other strands, then under one, versus the 1×1 or 2×2 twill pattern that is more common). They have also done some really cool projects in colored kevlar/carbon fiber (silver, blue, yellow, etc) as well as unique parts and styles, and they really tailor each piece to look exactly how you want, which is awesome.

Carbon Fiber B Pillars

For orders or inquiries, hit up! They should be able to make this for any vehicle as long as you can provide the core to wrap.

Nick Roshon

Nick has been an Audi owner and fanatic for the last 10 years, and started Nick's Car Blog in 2009 to share DIYs and pictures of his A4. Currently he drives a 2012 Audi TT-RS, and has previously owned a B7 S4, B7 A4, and an 82 Audi Coupe (GT) LeMons race car. In his day job, Nick is a digital marketer and lives in San Diego, CA, USA.


  1. Omg nick, omg. Looks spectacular, I have never been much of a carbon fiber guy, maybe its just the pattern you chose but I love it! Cant wait to see how the mirror caps turn out!

  2. It’s look really good!!! I’m trying to get 2008 a4 sline myself.
    how much did it all cost the pillars,interior trim and the front filler plate
    P.s keep up the great work!!!

  3. They are OEM covers wrapped in CF, but it replaces the OEM cover completely with a new cover that is wrapped. I then sent my cores back to oCarbon to be wrapped for a future customer. Does that make sense?

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