toyney83

iTrader: (3)

looking for some advice about 3 port boost solenoid as reading conflicting stories on here. im running a 2005 sti type uk, some people believe a 3 pbs is not needed on these, but others believe them to be a neccessity when going for a map. i understand they help the mapper control the boost but what gains do you see from them? im also running an md321h

toyney83

iTrader: (3)

anybody?

bighoose

iTrader: (2)

hmm no idea if they are or not mate but im in the process of going for 330-340 with my bugeye and he told me its a definite for a map along with 550's vf35 , fuel pump , 3pbs and STI TMIC , think they are just the better valve for mapping if you intend to do so ..

The Pink Ninja

iTrader: (23)

For what they cost they are worth in IMO, I have one on my Spec-C, As you already know it helps with the fine tuning of the boost control when mapping so cant be a bad thing for £60 or what ever they cost now

f4la k

iTrader: (1)

Helps when getting car set-up, finer control when boost being set. I would imagine a 2005 sti will already have a 3 port fitted.