An intake system for an internal combustion engine has an intake conduit of thermoplastic material provided with an intake socket having an annular collar. At least one acoustic element is concentrically connected to the intake socket of the intake conduit, wherein the acoustic element is insertable into the annular collar. A closure surrounds the annular collar wherein the closure is a metal clamp having a metal strap and a metal clip. The metal clip effects a releasable clamping action with a variable diameter of the metal clamp.

 
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> Sonic boom simulator

> Device for actively reducing sound transmission, and panel comprising such device

~ 00517