There's an irresistable force driving me to install the FRPP TVS. Not that I am dissatisfied with my stage II, I just think my car is ready for something more. So far I have read several posts on the subject and plan to install over the next few months when weather is colder. I have looked at several packages and like VMPs the most. I am going to upgrade to the SCT "livewire" wich should be a fun tool for instant feedback. I welcome any pearls of wisdom regarding who to purchase TVS from.