I'm looking at VF's Hex tune that claims 120hp/170tq gains and wondering if anyone is familiar with that tune? Is it marketing or are they truly getting 40hp more than the other tuners out there?
If they were, I would think that it would be much easier to find more online about the tune than I've been able to so far.
http://www.vfengineering.com/bmw/x5x6-m/