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I have a ESS but same pricipals... You are most likely not passing due to catalyst readiness. Your tune may have that turned off to eliminate a cel on a car that has the primary cats removed.
Also I am not sure about vf but ess provided me with a separate tune with a 5000rpm redline to flash into my car and drive it for a few hundred miles to get all readiness monitors to pass.
Readiness can be checked on any simple obd2 scanner so once you see that they have passed you go for your sticker. You may need you factory xpipe, high flow cats, or secondary o2 sensor spacers to get the car to pass the catalyst testing.
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