I am just about finished with my turbo project and i was wondering if anyone knew if i had to change out my MAP sensor or modify it, i am running 8psi with a Apex Vafc, please let me know

 

Under 11.3 psi you stock map sensor will be fine.

 

Are you sure? i just want to make sure thanks

 

yes you will be fine, im running 8psi now and I have no problems. i have ran 11.5psi with no problem too. 98ctr

 

Without a check valve?

 

Once I installed my VAFC, I took out my Missing Link. I don't get CELs under boost(6-9 psi) using the stock Map Sensor.

 

Too many noobs asking stupid questions...read the FAQ.
You don't need a check valve...if you're using a VAFC or SAFC with 450cc injectors...that's called the hack.
And 2 or 3 bar map sensor won't do you any good unless you got your ECU chipped and using Turboedit or UBerdata