The turbocharger (or turbo) is essentially an air pump that feeds more compressed air to a gasoline or diesel engine, hence the reason why turbo engines are often referred to as "forced-induction" ...

Matt's BMW M4 has been plagued with turbo problems and excessive oil usage... until now. In this video, we upgrade to Evolve Automotive’s OEM+ S55 turbos, built for more power and reliability — ...