Your tuner should be able to send them the necessary stuff to add it. It should not take EcuTek more than a day or two to add it. If there's still install work to be done, there's no reason to put the build on hold.
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2011 370Z 6MT Sport Gun Metallic | ARC | CJM | Ecutek | FI | Fujimura | R2C | SPL | Stillen | TWM | Z1 | ZSpeed | |