The wine and dine before getting rammed by air (Karbonius CSL airbox for e46 m3) : r/BMW
Reverie Zolder 4 Cylinder Carbon Airbox - 65mm Deep Right Hand Entry
Forge Motorsport Carbon fibre airbox kit for Audi RS6/RS7 S6/S7 - Pipercross foam filter | Autowerks - Specialista na prodej a úpravu koncernových vozů
Universal Cold Feed Induction Kit & Carbon Fibre Air Intake Filter Box W/wo Fan For Bmw E46 M3/330/328/325 M52 Ep-fb2303 - Air Intakes Parts - AliExpress
BMW e46 M3 CSL Airbox Fitted + First Drive! Karbonious Fitting Part : 2 - YouTube