E46 M3 CSL (S54) Race Carbon Airbox

The Karbonius E46 M3 CSL (S54) Carbon Airbox - Race is a track-focused evolution of the legendary CSL airbox. It features an integrated snorkel that ducts cool air directly from the front of the car, leading to lower intake temperatures and improved airflow. This motorsport-grade carbon fiber package also produces a more dramatic induction note and sharper throttle response. Manufactured from 100% prepreg carbon fiber and autoclave-cured in Spain under strict ISO 9001 quality standards, this airbox is produced through a manual process with exhaustive quality control. It boasts a high-gloss finish with UV protection for a stunning appearance. Beyond potential horsepower gains with proper tuning, the Race Airbox enhances the unmistakable S54 CSL induction roar. What's included: Carbon fiber airbox with integrated snorkel, CNC-machined aluminum components, stainless-steel hardware, ventilation valve bracket, and a numbered certificate of authenticity. The product comes with a 2-Year manufacturer warranty. Vehicle applications include BMW E46 M3 (S54), BMW Z3 M Coupe & Roadster (2001–2002, S54), and BMW Z4 M (E85 / E86, S54). Installation requires rotating the factory dipstick 180 degrees for clearance. Additional required installation components, sold separately, include the IND E46 M3 CSL S54 Carbon Airbox Installation Kit, OEM BMW M3 CSL IAT Sensor, Alpha-N MAF-to-IAT Conversion Harness, OEM BMW M3 CSL Air Shut-Off Valve, OEM BMW M3 CSL Crankcase Vent Hose, and for SMG models, the OEM BMW M3 CSL SMG Reservoir & Bracket.