Is 1-1/8" dia. the right size for a stock front sway bar on a 02 TLS ?
I am about to replace the sway bar end links with the Moog and the sway bar bushings with Energy Suspension Polyurethane bushings with the grease fittings.

 

Or is the correct size for the sway bar bushings 28mm ?

 

How about the rear sway bar ?

 

My caliper measuring device is not the best, but between research and my own measuring, it seems fairly clear the rear sway bar dia. is 19mm, which is almost exactly 3/4"

From my measurements on the front sway bar, depending on exactly where I measure it, I got readings varying from 27mm to 28mm, but NOT 1-1/8", which is about 28.5mm

The DIY post list an aftermarket Neuspeed bar of 28mm, but mine is stock and that's all I can find about size in the DIYs

The greaseable Energy Suspension sway bar bushings are available in 27mm and 28mm, is a difference of 1mm going to make any difference on a sway bar bushing?

 

The best thing you can do for the rear of your car is install the 3rd gen type-S w/ brembo's rear sway bar with Moog links. That for me made a BIG differance for me. I installed it when I still had OEM 17's on my car.