However much of it was longevity related, such as a lightened and cryo treated crank and high dollar whirly bits. It is listed with a lot of power modifications like ported heads and manifolds that most people won't get to however there isn't anything I saw written about it that would be beyond the reach of your average joe.
1989 240SX Fastback. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1995 300ZX Twin Turbo Warning: Objects in mirror aren't as fast as they thought they were.