Deman Engine (2012 to 2016)

The DeMan-modified Porsche Cayman 981 represents the ultimate "giant-killer" in the mid-engine world, transforming the already capable 981 platform into a supercar-rivalling powerhouse. Engineered by New York-based specialist Rick DeMan, these bespoke builds typically involve stroking the factory flat-six to a massive 4.5-litre displacement, utilizing Mahle racing pistons and Carrillo rods to produce up to 420kW at the crank. Beyond the raw engine output, the DeMan conversion is often paired with a custom close-ratio gearbox and a lightweight flywheel, addressing the factory car's famously long gearing to provide explosive acceleration through every gear. In the Australian market, a DeMan-engined Cayman is an exceptionally rare find, often arriving as a high-end private import or commissioned at immense expense by local purists seeking GT3-levels of performance in a more balanced chassis. This rarity creates a highly exclusive buyer pool and a commanding market value, as these cars are viewed not merely as modified vehicles, but as precision-engineered "restomods" that offer an analogue driving experience the modern 718 lineage simply cannot replicate.

The DeMan-modified Porsche Cayman 981 represents the ultimate "giant-killer" in the mid-engine world, transforming the already capable 981 platform into a supercar-rivalling powerhouse. Engineered by New York-based specialist Rick DeMan, these bespoke builds typically involve stroking the factory flat-six to a massive 4.5-litre displacement, utilizing Mahle racing pistons and Carrillo rods to produce up to 420kW at the crank. Beyond the raw engine output, the DeMan conversion is often paired wit… Read more