i bought a brand new prodrive three port boost solenoid but haven't been able to get the turbo and fuel system for it yet so i'm just going to sell it and save some money for a while instead of being broke. if anyone needs a boost solenoid (and it is still brand new) i am looking to get rid of it for $75. i bought it a month ago for about $130.
stock boost solenoid has 2 ports one port has a hose that goes into the intake and the other port has a hose that goes to the turbo, but splits with a t-line (going into the compressor AND wastegate) 3 port solenoid, one goes to intake, one goes to wastegate and one goes to the compressor, so it doesn't need the t-line BUT your will WILL need to be retuned for it.