The Nissan Silvia S15 was oneof those JDM cars we never got here in the states, one reason was it was made at a time when sports cars were being phased out in the states. The advertisemsnt does mention specs for different Spec-R versions and a Spec-S version, but we do know the s15 did come with a potent version of the SR20DET with the ball bearing turbo and high compression.