H&R took its time designing lowering kits for the Porsche Boxster and Cayman lineup, but here it is all the same.
The set of coil-over springs universally fits all Cayman and Boxster models coming in 981 (S/GTS) and 982 (S/T/GTS) body variants. You can install it in tandem with standard or active (PASM) suspension without affecting its performance in any way. The front end can be lowered by 20-35 mm (0.8”-1.4”) according to your needs, but the rear will stay 35 mm (1.4”) lower than stock, no adjustment available.
You can order the kit from H&R now for around €860. Also listed for the Cayman and Boxster are wheel spacers beginning from €115.
A year ago, H&R issued a similar upgrade for the Porsche 911 (992) Turbo S. It is shown in the video here.