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Honestly I'm not sure this is something I'm gonna go over with my tuner. I have a handheld so I'm no sure if I wanna run the nitrous tune all the time
Well if you plan on pulling timing (which is a good idea IMO) having a flip switch is really the only way to go. Having to stop and pre load tunes would really suck. If you have it dyno tuned running a custom burned chip (running 2 separate tunes) you can instantly switch between the two on the fly. It makes things way easier for running around on the street.