As stated this kit has been used by both Clogz and JBSmith1 with great effect. The added power is good but the cleaning effect is fantasic.
Yes they are boost related but as we use a VTN turbos the boost over lap is sod all if nothing, which is why we dont need a dump valve. The only draw back if anything is the tank size, as you allways want more of a good thing. Check out both of thier threads in the tuning section and dont belive the un educated home trianed mechanic who is sare mungering. In sort its fantasic and the cleaning effects on the intake are stunning.
Good points. I was being a bit biased, I think because I wanted to make my own controller, metering a fixed percentage of W/M relative to fuel flow (with a low fuel cutoff).
but I don't know if you saw my post regarding oil in the pcb cavity underneath the throttle valve. It must have come from breather fumes and also from the intake cleaning I did when I sprayed carb cleaner into the intake. The liquid/cleaner/oil has obviously dribbled down the vertical butterfly valve shaft (and via the motor) into the cavity below.
You can see from the pcb, which was completely submerged in oil throttle valve _labelled | Flickr - Photo Sharing!
(oil residue still on the white coating) that if water and meth had gone down there instead then the exposed soldered joints might become corroded.
The fix for a dodgy throttle valve which suits a lot of people is to simply unplug it, and accept that you'll probably get throttle valve errors logged, but not an EML warning. one of the Vectra guys reckons his throttle valve went into spasm *as a result of dry joints) and closed completely while he was doing 80mph in lane 3 of the motorway. That would cause serious engine braking !
I suppose you could also put some conformal coating, or even silicon sealant on the exposed joints if you didn't unplug the unit.