E46 Airbox CSL Full Carbon
Product description
The Karbonius Airbox CSL FullCarbon for BMW M3 E46 is an optimized evolution of the iconic CSL from the BMW E46 M3 CSL. Manufactured entirely in prepreg carbon fiber and cured in an autoclave under strict ISO 9001 standards, it offers an exceptional combination of lightness, strength, and thermal stability.
Based on a detailed 3D scan of the original airbox, this version incorporates substantial improvements: redesigned trumpets with a larger diameter, a cleaner internal flow, and an optimized sixth trumpet, all designed to enhance the performance of the S54 engine. The result is a deeply aggressive CSL-type induction sound and a more immediate throttle response.
Each unit is handcrafted in Spain, with meticulous attention to fiber alignment, anodized CNC components, and airtight sealing via a neoprene gasket. This exclusive and numbered piece ranks among the best carbon intakes currently available for high-performance use.
Benefits of E46 Airbox CSL Full Carbon
- High-quality replica of the legendary CSL Airbox.
- Manufactured 100% in prepreg carbon fiber.
- Reduced weight of only 1.7 kg.
- Improves airflow to the engine.
- Can offer a power increase of approximately 25 hp, depending on vehicle condition and ECU remapping.
- Delivers a sportier and more dramatic intake sound.
- High-gloss exterior finish with UV protection.
- Varnished interior to favor air circulation.
- Trumpets manufactured in carbon fiber, not plastic.
- Exclusive, numbered piece with a certificate of authenticity.
- Precise fit and easy installation.
- Premium visual appearance for the engine bay.
Technical information and specifications
- Approximate weight: 1.7 kg.
- 100% prepreg carbon fiber manufacturing.
- Cured in autoclave oven at 120 ºC.
- Manufactured in aluminum molds.
- Developed from a 3D scan of the original part.
- Production under ISO 9001 quality standards.
- Anodized aluminum machining.
- Carbon fiber trumpets with a polished finish.
- Trumpet diameter: 51 mm.
- High-gloss exterior finish with UV protection.
- Varnished interior.
- Numbered piece to guarantee origin and authenticity.
- Filter not included, available separately.
- Compatible with BMW M3 E46.
- The kit includes:
- Intake body.
- Ventilation valve bracket.
- Authenticity certificate.
How to install the product
It is recommended that installation be performed by qualified personnel or a professional workshop. Some additional parts may be required to correctly complete the assembly.
The product is designed for sporting use, so minor adjustments may be necessary during installation to ensure a proper fit.
Warnings
It is the customer’s responsibility to check and comply with the applicable regulations in their country regarding the use of this product on public roads.
This product is not an original BMW brand item.
Indicated weights may vary by ±10%.
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