Interesting to see that the LS1 in my '03 vert has the same airbox lid as my '01 Z06 did w/ the small hole on top. Older LS1s had no hole, and the '02-'04 Z has the big hole.
Swapped the Venom from my Z06 to the new vert. Cleaned it up and re-oiled the filter etc. I also setup the air pump line to attach to the bottom of the filter and used a spare piece of air pump hose I had to make a straight OEM looking connection vs. twisting/bending the stock tubing.
The Halltech intake has much larger filter made by Donaldson, a much larger and smoother air bridge, and a smooth coupler to attach to the throttle-body vs. the oem accordion setup. The biggest different with this CAI is that it repositions the MAF just forward of the throttle-body vs. the stock location at the end of the air bridge just after the airbox. This is the OEM location fo the LS3 and LS7 and provides a more accurate MAF reading due to straighter airflow. All this translates into preventing lean codes on an otherwise stock car.
Butt-meter approves... car will smoke the tires from a 1st gear roll vs. just a little chirp before.
-Brian