if i want to install the 3 inch mass air flow sensor and a cone intake along with a 3" inlet pipe what all do i need.... right now i have the stack turbo but plan on upgrading t o a gt2871r

 

Read this: https://www.audiforums.com/m_209610/tm.htm
Try not to get bored getting to the good stuff.. There is a lot of BSing in that thread thanks mostly to me [&:]
Its good bathroom reading material if you want to print it out. It should explain any hassles you may run into.
I believe its just the 3"maf housing you need. If you need one let me know i have one.