Exhaust has a lot to do with performance. Catbacks, Mufflers and resonators get all the attention, but the Catalytic Converter is super cool too! It’s an amazing design that changed the way we think about driving. Catalytic Converters have helped gas engines a viable means of transport while drastically reducing emissions. Bart cuts one open to see what's inside, and he explains the reactions they facilitate to turn exhaust from nasty to nice. Bart teaches us how cars work by blowing stuff up and cutting things in half. It’s a science show for the car lover who’s easily bored. Join Bart as he explains the science behind everything automotive. This is cars down to the atom. This is Science Garage. Some of our best videos ever are coming out soon, stay tuned so you won't miss a thing! ►Subscribe here: http://bit.ly/1JQ3qvO Check out more Donut Media Videos: https://youtu.be/Pz8IGLgFE2s?list=PLF… Want a Donut shirt or sticker? Visit https://shop.donut.media/ Like us on Facebook: https://www.facebook.com/donutmedia/ Click here if you want to learn more about Donut Media: http://www.donut.media/ Donut Media is at the center of digital media for the next generation of automotive and motorsports enthusiasts. We are drivers, drifters, and car enthusiasts who love to tell stories.