Dropzone /MRC is one of these tinkertoy brands that cannot afford to do their own engineering ... and it shows.
On the site you've linked us to...there is no discussion of spring rate for their coilover sleeves. So you have no idea what kind of damping rate you'll need for a reasonable ride.
The information on "their" shocks tells you nothing beyond the basics of any non-adjustable gas/oil shock.
From what little information they do provide, it looks like they are just repackaging the Tokico Blue shocks. The Tokico Blues are a non-rebuildable shock with low overall damping rates, which are not suitable for a application where high spring rates are used.
Secondly, there have been plenty of occasions where their inferior coilover sleeves have corroding and the spring perches have binded. When this happens to you, you'll be stuck with blown shocks and no way to remove the coilover sleeves for installation on the new set of shocks.
Save yourself a world of grief... and return their crap for a solution that has been properly engineered.
What springs / shocks are on the car currently?