Perfect timing-
I have a 2006 W22 chassis that I am installing Firestone Air Bags next Monday.
I already installed the compressor and control valves w/ remote control. Chassis shop will install the bags and run the air lines.
Also installing Koni FSD's at the same time.
Have previously installed front and rear sway bars, front and rear track bars and a safety+. That really helped in the handeling.
Installed a Banks system that improved performance up grades.
Now looking to smooth out the ride. Will post results after testing.