Spec your airbox

E46AD02

CSL Carbon Airbox

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Specifications:

Made in Spain
Complete pre-preg carbon construction cured in autoclave
CNC machined aluminum bungs anodize in matte black
Weight: 1.7 kg
Power: +25hp (depending on tune)
Weave pattern: 1x1 and 2x2 OEM CSL matching
Finishes: Gloss or Matte clear coated
Optional carbon snorkel
Exclusive and numbered piece
5 years warranty
Fitment guaranteed

BMW M Power sticker included.

The signature BMW M Power sticker is provided with the airbox. If you plan on installing it, I recommend it is applied and re-cleared for a seamless finish.

Optional matching carbon snorkel.

The Karbonius design mimics the original BMW M snorkel, without the flap mechanism. If spec'e with the CSL airbox, it will come in matching weave pattern and finish.

Build journal: A Special series

Buying the airbox is only half the way there.

These CSL airboxes are complex - the engineering & design expertise is not only for performance, sound but most importantly: reliability.

In this Special Series, I document my extensive experiences with CSL airboxes with 3x different airboxes I have tested.

I document the hardware checklist, the tuning dilemma between MAP v Alpha N, installation notes and my driving impressions with proper sound clips.

Cheers,
- Matt / @m3_epoustouflant

Read the special series