This device looks really cool. I got mine and was excited to use it. The first thing I had to do was spray WD-40 on the shaft and turbines because they didn't spin very well. I got it to spin good and put it in my car's air intake. After driving for a little bit, I started to worry what would happen if one or more of the fan blades broke off and was ingested into the engine. I removed the device and I feel much better not having it in my car. Bottom line: it may save gas and gain a few more horsepower, but it's risky to have moving parts inside the air intake. Best to you!
$2.58
Buy It Now
