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.
OE CSL WHEELS - OE CSL BRAKES - OE AUTOFOLD MIRRORS - CSL TRUNK - CSL DIFFUSER - AA SPORT TUNE - AA PULLEYS - BILSTEIN PSS9s - AS 40% SSK
CF CSL RACE LIP - NAVI - BMW PERF CF STRUT BAR - BMW GROUP N MNTS - GRUPPE M CF INTAKE - UUC SS BRAKELINES, TRANS MNTS, RTABs - 4.10 BMW M-SPORT DIFF