Unless you were there, you have no idea what was edited together, but that's not my point. I'm not disputing what you saw on TV. I was merely noting that it becomes increasingly difficult to believe anyone that turns into a snake oil salesman the last 5 minutes of his show.

Anyone that believes putting an obstruction in the air induction tube prior to reaching the throttle body can and will add 10 or more horsepower to their fuel injected vehicle should stick to TV, and invest in snake oil.

 

nah just a google find but seems like the guy knows what he talking about

 

I guess i will add my two cents..lol. First off you need the first two o2 sensors. The second set only compair the values after the cats and are not needed. Ether put in a mil., a tuner will work too, or just watch the light. You could run that motor off the manifolds (for a short time) and it wont drive that bad. As far as back pressure, who cares, it's how well the exhaust scavenges that matters. Sure you might loose atlittle low end at a very low rpm, but it would be small and i doubt you would notice. A proper tune will make a big difference as well. I have a 4.6 that has LT headers offroad x and straight through muff's running dual 3 inch pipes. It not only made 42 more HP and 46lbs of trq with no loss anywhere. And these 5.4 engines with 300HP single exhaust, crappy muffler and multiple cats, needs some help. I say help them....

 

And i cant get how this turbonator thing gets so much coverage. Its like a bad dream.

 

wonder if we could put a turbonator in the exhaust... twin turbonators to help vortex and accelerate the exhaust flow