I have bought it a while ago. But there is no place Where to mount it in engine bay. Maybe somewhere on the firewall under intercooler..I have found ProVent 200 on ebay for like 16$. Seems to have the stainless steel material inside from the pictures. It says that the product is universal but then says that it's for Ford Patrol...hm...so which is it? Would this fit a 2011 Forester diesele? Worth a try? How often should these filters be replaced? I've found replacement ones for about 10$.