do i have to be running the butterfly fully open all the time. i have zip tied opening it. can i just cut them off!

 

Sounds like you are running a chipped ECU that doesn't support the IAB (controls the secondary butterflies).

You can get IAB to work by -obviously- getting the right ECU. You can also modify some ECU's to add IAB control - requires new chip to be burned with GSR mapping.

 

you could get an aftermarket intake manifold, it's a single stage IM so you wouldn't have to worry about no butterflies. Also you already have the ecu to go with it.

 

would a Skunk 2 or Chorme work for that situation.

 

What ECU would work with for the butterflies and is the Butterflies really worth it?

 

the stock gsr p72 ecu. some people like them, but many people disable them or get an im that lacks the butterflies, i.e. a single stage intake manifold.