Trust me when I tell you YouTube videos don't accurately represent these tubes! The videos are good but wow if you screw them up you will be a lot more impressed. It took me 40 minutes to install them on my 2014 Ford Mustang GT. When I turned the key for the first time, I couldn't even tell the difference. Now it sounds like a racing car! I have a 650+ horsepower truck and this Mustang sounds almost as mean as that truck now! I've read that some people are complaining about drone noise at speed. I have a convertible and I don't hear much hum. It's definitely louder in the cabin. When passing a pedestrian you might not want to put your foot on the accelerator too hard as the noise and compression will make it pop out of your skin! :)