Question about 18 manifold and injectors

[White platinum]

2017 mustang gt pp
As of now I have e85 tune on the car with some minor bolt ons
I have recently purchased a 2018 manifold and 47 pound injectors.
If I Install these before my new tune comes in is it drivable or do I need to get my tune for the new parts first?

Also will my roush cai transfer over from my 17 to 18 manifold./is there a way to make it work to save myself 3 to 400 dollars

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[EFI]

If I Install these before my new tune comes in is it drivable or do I need to get my tune for the new parts first?

You *might* be able to get away with putting around on the 18 manifold, but not with the new injectors. Fueling will be all wrong and your car will barely be driveable if at all.

It's best to wait for your new tune before driving it with the new mods.

And yes, the Roush intake will work with the 18 manifold, it's in the same exact spot as before.

 

[White platinum]

Ok thanks
I had a feeling
I'm running e85 rite now so with the 18 manifold it requires the 47lb so I'll wait to be safe
Thanks again

 

[MustangGuy]

Yes, definitely wait. I installed the GT350 manifold and 47lb injectors and started it before loading the tune. I can attest it will not be drivable.

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