I don't think you unearthed old nightmares with him, just what he thinks and feels after he spent his money and found what many have, you wasted your money. I didn't get their air horn, but did their electronics and paid big bucks to have it professionally installed. Same results, no significant change. That's when I started preaching "when they say up to XX extra horse power ... zero is part of that up to". The bad part is someone has to bite the bullet and spend the money, time and energy to get the actual results. This is what the buyer has to contend with when it comes to any product sold on the market now.

So, if you get 1/2 or better than anyones claims for the product they manufacture and sell .... your a winner !