They don't "lie".... they just sell their kit with a hackjob of a tool made for carberators called an FMU (or fuel management unit) which adds a ratio of fuel per psi of boost (as in, 12:1 fmu adds 12 psi of fuel pressure to 1 psi of boost). The problem is, Pressure is not Volume. It's like putting your thumb over the garden hose. Sure, you can make it spray faster--- but only SO fast, before a bigger hose would actually flow more water per time. Basically, they sucks ass, and does nothing for ignition timing either.
there are better options out there, for not too much cost either. But like most things turbonetics sells, its over priced. their turbo kit that they sell for 4 grand can be built for about 1200-1500.