[MOTK]

In Europe the brand probably considered as the best for shocks is Intrax, most would say they are superior to kW, ohlins, nitron etc.
What is nice when buying from them is that the shocks and springs are done for your car, so your car weight and any savings in unsprung weights over OEM plus wheel size info are provided to them and shocks are valved accordingly.
Bear in mind that your unsprung setup weight could be at least 9kg per wheel less than OEM, if you have any sort of lightweight wheel/brake option then you really don't want any off the shelf kit that has been valved for the OEM 224 and steel calipers imo, it will at best put your adjustment range out.