COBB intake? well the part that has the MAF in it was on the car when I bought it, it's called an SF intake or somecrap. It's like $130-something on COBB's site I think? The MAF to inlet tube was like $75. Stock one had some cracks.
Some details on the airbox I made.
I picked up a sheet of aluminium from an ACE hardware, it was something like 28x28. I fabbed up an airbox out of cardboard (pizza boxes work well). Made adjustments to the cardboard until I was reasonably happy with it. Measured cardboard and the cut and bent alum. sheet to fit. For bending it I made a metal brake out of 2 large C clamps and 2 pieces of 1x3 wood, using a rubber mallet to get some decent 90* bends. I cut out another piece of alum to double up on the side that was next to the engine, doubled up for better heat deflection. I took the smaller piece of alum and C clamped it to the main peice and drilled some holes in both pieces. I put some washers inbetween the two pieces as I was pop-riveting them together. A good side effect is that it made it a good bit sturdier. I also cut some pieces to attach to the bottom so I could bolt it down to the frame.
Anyone attempting this will probably want to have these tools on hand...
2 largish C clamps - for brake
2 1x3 boards - for brake
rubber mallet - for using brake
sharp box cutting knife - to cut large/long portions of aluminium
drill with metal bits
pop rivet tool with rivets
washers that will fit over rivets
sheet aluminium - steel could be used but would be heavier and harder to work with
dremel with some grinding bits
cardboard and tape for pre-fab
*SAFETY EQUIPMENT* eye protection and gloves are what I'd recommend, don't poke your eye out!
I took me an afternoon and a few hours after dinner to complete. A lot of time is used getting it to fit well. I wish I would have made mine a little taller, the intake/filter is on the high side and is probably still sucking in hot air that accumulates just under the hood. I was planning to make a lid for it but couldn't find a clean way to pull it off. Also didn't want it rubbing the underside of the hood.