Brittt1 You brought up a very interesting point of you can convince yourself of anything that you want to believe in. Aftermarket intakes have been proven to be a performance pluse on any foreign, or domestic car or truck. To get a good idea of how many are out there, just go on Ebay and just type in the word "cold" that alone will bring up probably 11,000 items.
AS for testing, I had put the system on at 2225 miles. I now have close to 9K. The only thing that happened was I got better fuel economy, and I gained or added miles to when the ECU( Car's Computer) recommended I would need to have the car serviced. So to set your mind at rest, the car will probably blow up at 10K miles. HaHa I'm just kidding, I have had the system for a long time, and have put it threw every type of driving condition you can think of. I also come from a racing background, I constantly monitar what the car is doing. Wether that be my wifes car or my buddies cars, I can't help but to say what the car is doing at all times. I also have a vast knowledge of mechanics, anything with a piston I can wrench on
If you want I can break down how an air intake works