when i had my first 4x4 saph,i had it stage 3,greens etc but still on t3,then my mate gave me a shot of his pulsar up the 1/4 and i thought my cos would be a bit quicker,as it felt faster but 2 runs in the pulsar and i was on level with my best time in the saph 13.13-13-15,and the nissan was standard except filter and exhaust,as said above the boost is very progressive in the pulsar and doesnt have the pull like the cossie,sierra is a much better car to drive