I had to move the evaporator solenoid and run some wires just under the manifold to install it. I had to move the solenoid to keep one of the elbow/vacuum line connectors from bending after it was connected. It also didn't fit without moving the wrapped wiring (injector, sensors) that runs just under the manifold next to the intake hose. Quality product, well assembled, comes with all the necessary fittings to connect to all vacuum lines. I would recommend pulling out the collector for installation, that will do, but it's easier if you remove it.
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