Quick view IND E46 M3 CSL (S54) Carbon Airbox Installation Kit - 6MT Kit Includes: 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* NOTE: In lieu of installing the... $325.00 Add to Cart