This is a fairly simple mod, and gives much better response. It will drop IAT's about 20*F on a hot day. Only cost me about $40 or so, after spending $70 figuring out what all I need... Haha Anyways, off to the good stuff!!

Things you'll need:
Screws and bolts to hold everything together (24 each)
90* angle brackets (I used 5, but 6 would be best)
Three sheets of 12"x24" black textured ABS plastic. (got it on Amazon for $25 or so)
3/8" thick pipe insulation (6')



First thing, I outlined the shape of the airbox on the passenger side. Then I used a saw and grinder to shape the ABS. I ended up with this:




Doing the same thing for the driver side, and the top, I ended up with these three pieces.

I did have to shape them a bit more to get everything to fit alright, but you get the idea.

Then, I used the angle braces and bolts to attach the sides to the top. I put some window sealant in there, but it probably won't make much of a difference in temps.


I used the pipe insulation to try and keep heat out of the airbox.



I pretty much just eye balled everything, so nothing is super sealed, but it still seemed to work. Anyways, this is the finished product!!



Like I said it dropped my temps by about 20 degrees. Response has gone up a lot. Third pulls down a hill like second did on flat land. There is definitely more to be done, but it's a good start!

 

I stuffed mine inside a mini fridge and tossed a couple ice packs in with it. For cold air, you can't beat it. Hard to close the hood now though...

 

Did panda rofl slightly...