These are only present on automatics....I have them too in my 06 SER. Like 200 said, they serve to stiffen the mount up under load for "comfort" and luxury. If you were to get like RL or Red Lino solid mounts, which is the way to go, you can simply say goodbye to the ill thought out weak electonic mounts.....
5Zigen 19x8 Pro Racers-Falken F452 245/35/19 Tires-Eibach Sportline Springs
S5 Grille-20% Tint-M3 Window lip Spoiler-LED Cluster/Switches-TWM Weighted Shift Knob
C-man Headers-C-man 3" Y-Pipe-Magnaflow Exhaust-PNP'd Heads w/Ferra Valves-RevUp Oil Pump-Pulley-JWT C9 Cams-Haltech Platinum ECU-Fujita5 CAI-Weisco Pistons-ARP Head Studs
Kenwood DNX-9140-ZED Leviathan-Focal Speakers-Sound Deadened-XBox-270Amp Alt