awhile back i bought a dinan cold air intake for my 325is. its a bit too long so i think that it was for a different model, though it was said to be my model. my first question is should i cut it? its carbon fiber but i have the right tools to do it, at least thats what my friends say. if i dont cut it should i sell it and get another one? my second question is this; what is the hose that connects to my stock intake box. i think that the hose that is connected to the intake tube in between the box and engine is my mass air flow sensor, but im not sure what the other one is. it is located low on the side facing the cab. any information on what it is and if it is a vital part to keep would be great. thanx guys.