Assertion: diesel's engine | /r/HasProperty | fitted with muffler
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text: Gasoline and diesel engines are fitted with mufflers (silencers); newer turbofans often have outsized fans (the so-called high-bypass technology) in order to reduce the proportion of noisy, hot exhaust from the integrated turboshaft in the exhaust stream, and hushkits exist for older, low-bypass turbofans.