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.