I can agree for the most part, much of these fuel related gizmos are pure snake oil, this one looks and sounds like it does offer noticeable improvements from all I've read out there, BUT, what state of tune are all the ravers engines in prior to trying? From what I've read they all have some level of bog, hesitation, or stumble that IMO gets masked and overcome by installing this bandaid. Instead of taking the time to tune its much easier to just slap this puppy on and viola! Hopefully Johnny's setup is dialed in perfect and we can all see how it does when put to the test :thumbsup:
