Does anyone have any experience with or heard anything about these kits as seen on e-Bay. I have noticed 3 different people offering them in the last 2 weeks for $1.99 to $4.99. Do they really work (add 20 hp), are they harmful in any way, have you tried one? The kits are often called fuel/air/timing enhancement kits. I suspect they are a resistance change on the sensor of the air temp intake. does anyone have any info on them?
Regards, Eddy