ya i gave them a list of mods, but not the psi. i could email chris that i plan on running 21 psi.

 

That is exactly what I would do. I am sure they already assume that but better safe than sorry. It wont make much of a difference though. You wont be running unsafely or shouldnt be but I would still tell them just so your sure you getting optimal power for saftey

 

hey emonz i got my ecu flash already but my dumb *** forgot to upgrade my fuel pump. will i be ok adding the new pump after a flash?

 

did you tell them you were on the stock pump?

They may have just compansated for a upgrade anyway. I would just call your tuner and ask. You will be able to run the car with a new pump it just will be a little more rich than ideal which will just kill a little bit of gas milage and HP.

 

thats what i was thinking since theyre base flash says it includes fuel improvement. they knew i was upping the boost to 21 psi. but i will ask today.

 

You need to keep the electronic boost control and just modify the boost hose before your flash. The GM Boost control solenoid is the best way to go.