Gun it a couple of times *before* you want to drive aggressively. This will prompt it to switch modes, and it'll be ready for you when you want it. Note that if you're doing this on the street, slowing down between stretches can possibly put you back in cruising mode.
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2011 370Z 6MT Sport Gun Metallic | ARC | CJM | Ecutek | FI | Fujimura | R2C | SPL | Stillen | TWM | Z1 | ZSpeed | |