2005 Ski-Doo RT Series Shop Manual, Page 41Get this manual
Section 02 ENGINE Subsection 02 (AIR INTAKE SYSTEM)
A35C07A
1Adaptor plate 2Locking tab 3Air intake silencer
A35C08A
1Clamps 2Adaptor plate
AIR INTAKE SILENCER INSTALLATION (ENGINE SIDE)
The installation is the reverse of the removal procedure