How does an anti-lag system work? What is an anti-lag system? In the video I explain an additional type of ALS, which uses a bypass valve sending air to the exhaust manifold in order to maintain the boost levels provided by the turbocharger for the engine. This system is present on some models of the Toyota Celica and some models of the Mitsubishi Evolution. Please feel free to rate, comment, and subscribe! And don't forget to check out my Facebook page: http://www.facebook.com/engineeringexplained Also check out my official website: Make suggestions, participate in forums, enter for Car of the Month, learn through logically ordered lessons, read FAQs, and plan your future! http://www.howdoesacarwork.com/ NEW VIDEOS EVERY WEDNESDAY!