My corsa rear setup is almost as good a polo rears... not much in it.
I wouldn't advise Polo coilovers. Speaking from experience.
what downside did you find ?
Shorter the shock the better for you lowered crew. As the shock will be in its specified limit even whilst loweredCorsa lowering shocks arn't too bad with the springs I'm using. Actually more comfy than corsa c rear shocks and cut micra springs...
Unnecessarily hard ride.
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