For the entire vishnu operation to be MIA from the forums isn't a good sign or very professional. I know there are issues with the single turbos but they seem to have forgotten about 99% of their user base which is stock turbo users. As a vishnu consumer, I expect a quality product with a few updates which haven't come in about half a year now even though that was what was promised over time.
Forget about fueling, forget about the single turbo, 95% of users won't need any of these. As these cars get cheaper, younger people are going to buy them and they're more likely to mod but I feel vishnu is going to start losing out on this next generation of n54 modders.
You pay a premium for a product and expect a little better than this.