Originally Posted by subarwho?
Its not a 2" pipe for the stock inlet. Tried it last night, way to small(on a 2002 wrx anyway). The outer diameter of the inlet that the airbox hose slides on over is about 2.9".
What is the best way to plug/cap all the inlet lines?
dunno how many times this needs to be said, but YES it IS 2". You don't put it over it, you jam it inside. The reason is because you'll be pressurizing it. If you put it over the inlet, it will expand and blow itself off. If you put it inside the inlet, it will expand and seal itself tighter.