I bought a skunk 2 IM, type-r throttle cable/bracket, tb gasket, and IM gasket. I'm going to be installing these parts this weekend and am wondering what kind of problems i will run into. After searching it seems like not all of my vacuum hoses will be reused? one is just supposed to dangle?? I've also read of serious idle spikes upon start up. I'm also worried about getting a check engine light when the car no longer has the second set of it's butterfly valves connected....what exactly is supposed to happen. I have a gs-r and ofcourse it's built for mid-range power in the manifold when butterfly valves open to allow more air to flow through a second set of shorter runners. I'm sure there is a plug for this that runs to the ecu. How do i make sure i don't get a check engine or will I?