The CDD installed on IS300s with a manual transmission was added to make it “easier” and smoother to drive. For people with a lot of experience driving a manual or intend to drive race/track your car this mod is a must. (It makes heel-toe MUCH easier)
It is located on the drivers-side, next to the firewall.
You DO NOT want to get any fluid on paint or other surfaces.
There should not be much, if any, fluid that drips out of the lines.
Be careful when you pick up the CDD because fluid will probably drip out.
Screw the two lines back into their respective ends. Make sure you do not over tighten/strip these screws. You could remove the internals of the CDD but since it is so much more work and the union connector is much cheaper and cleaner I am not even going to cover how to do that here.
Reverse the steps…