I believe the auxiliary ports open only under heavy load (kinda like the secondary injectors), so I am not sure they open when you are standing still. Maybe if you unplug the boost sensor, the ECU may be fooled and think it's under heavy load.



I am not sure about this at all.



hugues -

 

sorry, mine's an N/A

 

The boost sensor is on the NA (I don't know why it's called that way, maybe it would be better if it was called a pressure sensor, anyway it's intake manifold pressure)



BALDY:



Are the sleeves (auxiliary port valves) rotating freely (when you move the actuator rods by hand) ?

If they are not, then you'll have to "unstuck" them before anything else



If they are not stuck, then they probably work (a muffler should give you enough backpressure), but you can know for sure by putting stuff on the rods and see if the stuff got moved when you take a quick drive around



hugues -

 

mine work, I'm pretty sure I saw them moving when I had my wife sit in it and rev it high, and it runs great...after doing some reading, I am now confident that they will continue to work after adding a rb header, and hopefully aftermarket mufflers later



(anything work as good as rb mufflers, that cost less? I don't want to spend more on mufflers than on a header...)

 

For $289, you can get a Dynomax dual kit or Corksport stainless single kit and I don't think it would be that much less power than the RB. Most of your power will come from the mods to the cats (header).