Kit Includes:

• Airbox
• CNC Machined Aluminum Components
• Stainless-Steel Hardware
• Ventilation Valve Bracket
• Certificate of Authenticity
• OPTIONAL ESS E46 M3 Alpha-N E-Flash ECU Tuning Software

This is possibly one of the best airboxes available in the market. With a built-in snorkel, it facilitates the air ducting from the front of the car, getting a lower temperature in the intake system and facilitating an optimal air flow. In addition to a gain of power, the M3 CSL Carbon Race Airbox provides improved throttle response and that fantastic induction roar as well as a stunning appearance, with a high gloss finish and UV protection.

Karbonius Composites bet on the quality of our products, which are made 100% of carbon fiber prepreg and cured in autoclave in our facilities in EU, by a manual process, highly qualified personnel and under exhaustive quality controls. For these reasons, because we are conscious of the quality of all our products, we offer to our clients a guarantee of 2 years against any fault of manufacture.

Product Features:

• Appreciable Gain in Power
• Aerodynamic Design
• Great Fitment Guaranteed, Simple Installation
• Reinforced in all key points
• Awesome Sound
• 100% prepreg carbon fiber
• Cured in Autoclave
• Exclusive and Numbered Airbox; Authenticity Guaranteed
• Aggressive Appearance
• 2 Year Warranty

Application Guide:

• E46 M3
• E36/7 Z3M S54B32 (2001-02)
• E85 / E86 Z4M

NOTE: In lieu of installing the CSL-Specific Shortened Oil Dipstick, we recommend keeping the stock unit and rotating it about 180 degrees so it clears the airbox.

NOTE: Requires IND Install Kit:

• OE BMW M3 CSL IAT Sensor
• Alpha N MAF-to-IAT Conversion Harness
• OE BMW M3 CSL Air Shut-Off Valve
• OE BMW M3 CSL Crankcase Vent Hose
• OE SMG Reservoir and Bracket for SMG-Equipped M3s

Warning: It is customer’s responsibility to check local laws for ensure legality when using this product on public roads and highways.

Thank you to HackEngineering for a photo we used!