I became less than impressed over the factory GM filter minders while working on some D-Max upgrades. We had a "freshy serviced" D-Max to which some mods had been made. We could not get stock power on the dyno. Got nowhere near what we wanted in Level 1 or Level 2 on the programmer. In Level 3, it was drastically off but we noticed it popped the filter minder. We looked, and the air filter was plugged big-time. I'm talking knock it on the ground, add seeds, water and grow stuff dirty! Only on Level 3, with the massive increase in airflow, did it trip. The dirty filter was worth 15 hp in stock mode, as measured on a chassis dyno. Probably more, as the dyno reading we got from that dyno and operator were suspect down the line.
Onmo- You're way too anal to ever let a filter go far enough to trip a filter minder, even if you found one calibrated to work on your 4.6L. You'd be better off with a super sensitive vacuum gauge plumbed in somewhere to measure restriction.