[OKGMC4]

I did some research on intake air temps and found that not only is colder air better than hot for performance but an injected engine makes this even more so....as the intake air temp increases the ecm retards timing accordingly. That means you're losing power and probably fuel economy as well. I borrowed an idea from JML55's truck and got rid of the top mounted airbox, but did my new airbox in fiberglass rather than stainless. Inside is a cone filter fed through the core support. I verified before and after with live data from my OBDII scanner and I have dropped my IAT by 47 degrees on a 55 degree day from 109 down to 62. And that's sitting still idling. It does run smoother and quieter but I have no way of verifying any power increase.

With the top box out of the way I decided to do an intake cover. I took a new camaro cover, cut out the center and bolted it together with an aluminum strip and bonded it with epoxy. Filled the oil fill hole with an old wheel cap and painted it silver with orange flames. On the last piece of tape some of the silver lifted so rather than repaint the whole thing I brushed a black outline on all the flames to hide the screw up. Not as nice as I wanted but I can redo it later. It's sunny outside so I'll just drive it awhile...