It should have vented rears at that age.
It might have self leveling, easy to check by looking at the shocks to see if they have small pipes connectd to them.
As for shock choice, if lowering 40mm then you wont be able to fit any sort of OEM shock as they will only support a max 30mm drop.
If you want the rear stiffer then fit Senator rear donut bushes!
Ummm, I think they are 40mm, I will have to look further in, I got them off MV6copcar, they are PI's
Don't remember any pipes so likely not self leveller then. Is there much out there for omegas in the way of shocks or can I use different vaux efforts?
And why are the Senny dounts better? Just bigger? (We talking about subby bushes?)
as an experience I've played with the shocks in clit sport ..(and some
other cars before) result is disaster.. riding is same as riding a mad
bull.. and the shocks dont live any longer than 6 months

Stiffening the light rear end of the clit on FWD is different to a Heavy RWD. I have played with lots of cars and lowering and although I appreciate it wont be as comfy, it will not be bone shuddering and will be better for what I want overall. Decent coilovers would be the perfect solution, but to keep comfort and control (and the fact there can't be many oprtions in that field for the omega) would involve spending a fortune!
I appreciate the shocks wont last as long, but 6months is very pessamistic, the lowered springs are stiffer and proggesive anyway, they lower the car by being shorter not softer
