Will take a metabolizer speed up your metabolism and help in passing a drug test?
Answer: maybe, i haven't tried it. i don't think you should try it though.
most things that speed up your metoblisim enjoy some form of caffine, which may help loose a few lbs. of water counterweight but dosent do much in the long run. its doubtful it would help next to a drug test. No. Especially for marijuana. THC is stored in your overweight cells, and you DON'T want to burn fat cell, especially more than would be from just a regular day beside no exercise, as that would release more of the THC into your urine, making it MUCH more likely for you to FAIL a drug test miserably..
Your best bet is to call on http://www.directdetox.com and stock up! There's some super stuff there that will 200% guarantee you pass your interview. It works! I've used it! There's stuff for random situations as well.