The intake sound of an open pod was damn orgasmic .
Tried before on my SLK 350 & a broke ass standard Waja 1.6 with Mitsubishi 4G18 , the sound when full throttle was damn awesome , but in performance wise it is better off with standard airbox & drop in filter , AND the mass air flow sensor failed on the SLK weeks after the pod filter install costing me 900+ for one unit but luckily it just failed on one bank so not both ,according to the SLKworld forums,it is caused by oiled filter,Mass Air Flow sensor are sensitive to the oil ...
And also the low end & fuel economy suffers ... tried on my W204 C-Coupe with 1.8 Turbo , just with K&N drop in and the top lid off the turbo spool sound was damn loud ~
If wanna install Open pod i guess it needs a Cold Air Intake to supports the mod ~