This 2016 Porsche Cayman GT4 (981) came from the factory with a 3.8 L flat-six. It is now powered by a 911 GTS flat-six built by BGB Motorsports with displacement increased to 4.2 liters. The motor features a stroker crankshaft, BGB Motorsports rods, 105 mm pistons, Nikasil cylinder coating, ported heads, BGB Motorsports intake system, and SOUL Performance exhaust headers. Behind the motor is a six-speed transaxle with a custom gearset and Guard limited-slip differential. The Cayman’s suspension uses JRZ RS Pro reservoir shocks and lowering springs. Braking is handled by Brembo six-piston calipers in front and four-piston calipers in rear. Both have slotted and ventilated rotors. Over those are BBS E88 18-inch wheels wearing Yokahama Advan slicks. You can view more photos and specs on the Bring a Trailer listing.
Source: Bring a Trailer and photos by @aarievann