with an efilive custom operating system 5 you have a timing table for nitrous and all you have to do is hook a wire from pin on the computer to your nitrous switch and once its activated it goes to the nitrous timing table..but im sure with what your sayin is good too

 

So your saying kinda like the diesel guys have, switchable power!

Dustin

 

not on the fly..i am told it will require a key-on flash.

 

with the type of tune your talking about?

 

all he is doing is adding up to 6 computers into you PCM, then you can take HPtuners or any other tuning software and program each individual tune, than you have a switch, turn vehicle off switch to another tune and turn your truck back on and you are in that tune mode, for example, you can have one tune completely stock and another performance tune. if you need to go to the dealer you can switch to the stock tune and they won't even know you have multiple tunes in the truck, that is just one example.
Mark

 

yep, the superchips i used were i used to work was like that but you could leave the vehicle running but only had 4 tunes

 

Tyler's way sounds more suitable. I mean. If he all the sudden see's someone on the highway and wants to race he has to throw it in neutral, shut it off, switch the tune, and start 'er back up. Don't miss neutral tho, I've done that in my blazer. Luckily the trans still lasted a while longer.