2020-2024 For Porsche 718 Cayman GT4. 2020-2023 For Porsche 718 Spyder. Optional extras are available: there is a Link pipe set in titanium for the Slip-On Line Race (Titanium) upgrade, and a carbon-fibre diffuser, in matte or high gloss, can be added to emphasise the design of the Akrapovič exhaust tailpipes.