Ok, let me go back for a second. Again, i'm NOT trying to sound pessimistic, but this is my personal opinion when it comes to ANY piggybacks vs ems.
I realized i didn't answer some of the questions you posted up in my last post so i'll try and touch on those for a sec.
-You are correct that the the boost pressure sensor is only needed only at a certain point. But, since our cars doens't use a MAP, instead the ecu uses the afm, you WILL need the pressure sensor to tune for 12+psi.
-If your primary focus is to remove the AFM, the emanage is not up to the challenge, it will be based on the AFM. However, the emanage ultimate appears to be able to remove the AFM (but like you said, it's more costly to go that route) especially when a vpc is only 300-350 nowadays.
-I honestly don't remember if the two adapters are required or not, so lets take that out of the equation, it's still going to run 550-700 even without it.
-I take back what i said about people using the emanage. I do recall a couple people from a while back, i believe one using an ultimate that posted about having issues with it (can't remember what they were) and another using either the old school emanage or ultimate (i can't remmeber which). But i do recall neither of them posting anythin gabout it after using it.
Here is what an experienced tuner (and well respected IMO) thinks about greddy's emanage:
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Originally Posted by RickyB
$746 for the components and then, unless you are pretty good at wiring you will probably need to pay someone to properly install the unit for you. A professional installation using a modified VPC harness so that your engine harness doesn't need to be cut up will probably run at least $500 (I know because I do these things). This actually puts you above the cost of a plug and play SDR. Looking at the tuning instructions I can see that this system is going to take just as much time if not more to tune properly for any significant changes such as bigger injectors or cams as an EMS, so figure another $600-1000 for professional tuning. In the end, however, you will still have artifacts of the underlying stock ECU to deal with while the guy who went with the EMS doesn't.
My suggestion is to price EVERYTHING out from initial unit purchase until the point where you will have a fully tuned and properly working and reliable setup. Chances are that a plug and play EMS will turn out to be a better value when all is said and done.
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