Karbonius
Karbonius E36 M3 (Euro S50) Carbon Airbox
The Karbonius E36 M3 (Euro S50) Carbon Airbox is an Evo-style carbon intake solution designed specifically for the European S50B30 and S50B32 engines. Engineered for improved airflow, this airbox — when combined with an Alpha-N remap — has been validated by Karbonius to deliver a power gain of approximately 30 horsepower alongside improved throttle response and an exceptional induction sound.
Manufactured from 100% prepreg carbon fiber and autoclave-cured at Karbonius' facility in Spain under ISO 9001 Management Quality System standards, the airbox weighs just 1.9 kg and features a high-gloss finish with UV protection. CNC-machined aluminum components and stainless-steel hardware complete the kit. Each piece is individually numbered to guarantee origin and authenticity.
What's Included
- Carbon fiber airbox
- CNC-machined aluminum components
- Stainless-steel hardware
- M Power sticker
- Numbered certificate of authenticity
Product Details
- Weight: 1.9 kg
- Power gain: approximately 30 HP with Karbonius airbox and Alpha-N remap (Alpha-N remap not included)
- Improved throttle response and dramatic induction sound
- High-gloss finish with UV protection
- 100% prepreg carbon fiber construction
- Autoclave-cured for strength and finish quality
- CNC-machined aluminum components
- Stainless-steel hardware
- Individually numbered for authenticity
- 2-Year manufacturer warranty
Vehicle Applications
Important Notes
- Compatible with Euro S50B30 and S50B32 engines only — not compatible with US-spec S50 or S52
Recommended Upgrades
Notes
- Designed and manufactured in Spain under ISO 9001 quality management standards
- It is the customer's responsibility to check local laws to ensure legality when using this product on public roads and highways
- View emissions compliance notice
- Professional installation recommended