BMW E46 M3 Karbonius CSL Airbox Europe 

For sale BMW E46 M3 Karbonius CSL Airbox Europe. This is a Rare, NLA plastic trumpet Karbonius CSL airbox. Will come with an OEM filter. Excellent condition, the decal is UNDER the clear coat as this is how Karbonius sold the airbox before they no longer had access to plastic trumpets from BMW. Deeper tone throughout the RPM range compared to the newer full carbon trumpet airboxes.