Hey, basically the hardest part is getting your stock intake out. What I did at first was take out my MAS and the other small senso that is in the intake tube right after the filter. Once I had those out I started taking all the stock stuff out. Once you get your filter and tubing out of the way its fairly simple. Put your new pipe from the TB to the MAS on, then attach your MAS to the rest of your new piping. Make sure you use a new gasket between the MAS and the new piping. After that there should be a rubber grommet on the intake tube near the MAS, plug your small sensor into that grommet (make sure you can see it from inside the tube) then plug it back into the harness. After that plug in your MAS into the harness and finish tightening it down. If your kit goes into the fenderwell then you need to attach the heat sheild as well. Thats pretty much it.
I hope this helps a little. I'm sure some more knowledgable guys here can explain it better than I did.