The turbo-not the monster GT30PRO S the Hiper uses-is HKS' mildest ball-bearing upgrade, the GT-RS, and hangs off a Yashio Factory manifold with other HKS goods in the form of an intercooler, 256/ ...

1999 Nissan Silvia S15 turbo engine and interior. Nissan. That’s because S15s are pricey for S-chassis, being the shortest-lived of all generations.

The S15 is powered by a Nissan SR22DET four cylinder with a monster turbo that puts out 560 hp. A SARD fuel regulator and two Bosch fuel pumps regulate the juice that supplies 850cc injectors.

As any enthusiast knows Toyota's formidable 2JZ-GTE, aka Supra turbo engine, is already a beast from the factory but the team at Sumo Power isn't known for leaving well enough alone.