CSL OE+ Carbon Trunk

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A revised interior.

Karbonius replicated the BMW M exterior design of the trunk. The interior was updated with a sleeker inner shell and embossed area to fit an M logo.

Same exterior shell, but lighter.

The pre-preg carbon constructions sheds 6kg over the original CSL trunk made from sheet moulding compound (SMC).

Compatible with Genuine CSL accessories

The badge, lights, locks sections are pre-cut to slightly tighter tolerances than OEM for accessories. This will give leeway to your body shop to adjust.

Ready-to-spray, or clear carbon exterior shell.

The exterior shell is available in primer or cleat coat exterior finish.
Spec your CSL trunk
CSL Carbon Trunk
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E46CSLTRK

CSL Carbon Trunk

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Specifications: 

  • Made in Spain
  • Pre-Preg & Autoclaved carbon fiber construction
  • Weights:
    • Karbonius: 5.5kg
    • OEM CSL: 11.5kg
  • Revised interior design:
    • Simplified aesthetics
    • Reduced dimensional area for reduced weight
    • 4x4 carbon weave on interior panel
    • Available in Matt clear coated interior finish
  • 1:1 exterior design:
    • Classic CSL ducktail design is retained
    • Available in ready-to-spray primer or cleat coated, visible 2x2 carbon finish
  • Compatible with all OEM accessories, including the CSL trunk liner and license plate lights
  • 3 years warranty
Panel gap expectations
The exterior fitment matches an OEM panel without alterations.
Build journal: special series
The first stop to a CSL conversion.

Beyond the material science and its application to BMW M street cars, the CSL marked a new design language.

I find the integrated ducktail'ed trunk embodies this change the most - and is often the most requested CSL conversion product.

In this Special Series, I will document the unboxing, paint, panel gap & accessories fitment along with final aesthetics.

Enjoy,
Matt / @m3_epoustouflant

Need help?
Been there, done that.
Made in Spain
The Spanish Connection.

Karbonius Composites is a leading manufacture of BMW M street & motorsport carbon products.

They have been on the rise since mid 2010s and establishing themselves as a leading manufacturer in the industry.

Quality, and most importantly customer service have set them apart.

Explore my E46 M3 exterior program