I installed one of these MACE POD enclosures on my VY II S (S/C - L67). After doing a bit of research, I was quite skeptical about the benefits.
After a pretty clean 20 minute installation, I took my car for a test drive. I immediately noticed a louder whine under heavy acceleration, and of course the highly praised induction noise coming from the POD. The power gain isn't significant, but definitely noticeable - a lot more low - mid range power.
Given the price of the kit, I truly don't think it's worth the money. All you really get is a plastic enclosure, pod filter, a bit of ducting, and a bracket + some screws for installation. My advice is to put together one yourself, and not to use the POD filter that comes with the kit - it's a rather cheapish unit. I'm planning to get myself a K&N one shortly (as soon as the bank account tips in my favour
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I can give you some pics of it installed in my VY if you like.