I've never had any issues with my Cobb intake, in fact I just cleaned+lubed the filter, looks brand new. . . . *sigh* As for the AP, that had some real issues. Long story short, once it married itself to my car, it refused to unmarry. And I was forced to rip my ECU out, ship the AP and ECU across the county to Utah and was out of a car for 10 days. Not a fun experience, let me tell you.