The HKS RB28-equipped Nissan Skyline R34 GTR Vspec is a high-performance marvel that exemplifies the pinnacle of Japanese automotive engineering. The centerpiece of this vehicle is the HKS RB28 engine, an upgraded version of the legendary RB26DETT. This upgrade increases the engine's displacement to 2.8 liters by extending the bore and stroke, enhancing both power and torque. The HKS RB28 features high-performance components such as a forged crankshaft, high-flow intake, metal head gaskets, and reinforced valve springs, all of which contribute to its remarkable output of up to 493 horsepower and 398 lb-ft of torque in its most advanced configurations.

One of the standout features of the HKS RB28 is its V-Cam technology, which significantly improves low-RPM torque and overall engine responsiveness. This technology, combined with a CNC-machined combustion chamber and a high-capacity oil pump, ensures optimal performance and reliability, even under the high-stress conditions typical of racing and high-speed driving. The RB28's engineering also includes lightweight components and enhanced thermal management to maintain performance at high RPMs.

The transformation of the R34 GTR Vspec with the HKS RB28 engine results in a car that is not only more powerful but also more responsive and efficient. This setup, however, comes at a premium cost, with the complete high-response package priced at around $61,500. Despite the cost, the performance gains make it a worthwhile investment for enthusiasts seeking to push the limits of their GTR, providing a substantial upgrade over the stock RB26DETT engine. The HKS RB28-equipped R34 GTR Vspec remains a dream car for many, celebrated for its blend of cutting-edge technology and raw performance.