1.6K views · 66 reactions | Join the Boost Doctor as he explores a couple of the most frequent questions we get, which are... - What is the difference between a bypass valve and a blow-off valve? - What do the different ProCharger valves sound like? - What does it sound like if you put 5 valves on at the same time?!?!?!?! LINK TO FULL VIDEO IN COMMENTS! | ProCharger Superchargers | Facebook

335K views · 1K reactions | There are many types of blow-off valve, all making different noises and working in different ways. So how do they work? | Car Throttle | Facebook