Yasin,
You will be more than happy with ER bushings all around ...
I had my first DE of the season Saturday after replacing the front arm bushings with ER's over the Winter,the spring plates were done last Summer and with 22 mm and 29mm torsion bars the car was a joy to drive ...
Now ... have to get me some of them ER adjustable sway bars ... lol
Oh well
Cheers !
Phil