Ive done a good bit of searching without much luck at this moment in time, Im looking for adjustable suspension for the Weekend if there is any to get. I thought Id ask here anyway cause there maybe one better than another.
I got Koni's on mine, they're adjustable, but rock hard ride.
Not sure if they are still available took some finding.
FK do a kit for Coupe's and Bravo's so may fit Marea with some adjusting.
When I looked at this I only found the Konis and they were £500. In the end I stuckwith OE. I prefer a sporty car and the Marea is set up as a "wafter" stock
as an after thought on the KW's, they might not fit your 1.9JTD, i have a feeling it may have smaller front hubs than the 20v & 2.4jtd but you would have to check.