http://www.turbonator.com/ as advertised on this site.
at 1st glance it sounds good, especially since it isn't just allowing more air/larger particles into the engine. But...
Gas turbines use 'swirl cups' to ensure good fuel-air mixing, but they depend on homogeneous mixing for proper combustion. A fuel-injected ICE is engineered around a heterogeneous mixture and the inlet ports create turbulence in the cylinder anyway. There may be some benefit to vanes smoothing air delivery to the inlet, though.
On a tightly-controlled engine that depends so heavily on monitoring combustion conditions such as a Honda VTEC (even more controlled for our HAHs) is there any benefit at all? 'Faster burn' may not be of assistance to us if the computer can't recognize or adapt to it.
Has anyone installed one? Any change?