SP Engineering R35 GT-R GT570 Kit Dyno chart

From NAGTROC

Stock - 426HP/446TQ
GT570 @ 1.1 - 566HP/575TQ
GT570 @ 1.2 - 572HP/606TQ

Dyno video can be seen here... http://www.youtube.com/watch?v=vI8sSkgQISo

All pulls were done on 91 CA Pump Gas, and we reprogrammed the EVC with the HKS Easy Writer software.

$8900 + labor.

Not too bad