that is the ECIS brand intake system for the 323/328 models. it is a very good intake system. i had it for years. only thing that gets worn is the black carpet on the black powdercoated metal shield. you should be able to get $100 for it easily.
i have my 323ci stock airbox that i would be willing to ship in exchange.
OEM CSL WHEELS - OEM CSL BRAKES - OEM AUTOFOLD MIRRORS - CSL TRUNK - CSL DIFFUSER - AA SPORT TUNE - AA PULLEYS - BILSTEIN PSS9s - AUTOSOLUTIONS SSK
CF CSL RACE LIP - NAVI HU - BMW PERFORMANCE CF STRUT BAR - BMW GROUP-N MTRMTS - UUC SS BRAKELINES, TRANS MOUNTS, RTABs - 4.10 BMW M-SPORT DIFF