im getting a a custum bent pipe for a cold air intake and then im gonna get a new filter cause for my trucj thats the cheapest and easiest way to go. but i have a mass air flow sensor in like a box in front of the stock filter and at the end of the stock tube. and i dont understand what i do with it. i mean, do i keeo it on and run pipes through it or can i just dump it and run the pipe straight to the new filter. will this have any affect on performance or sound????