If you havent seen it in the xj tech, I made a cowl snorkel.
(Copied from my other thread.)
I recently got a second intake hose from a wrecked xj, so I got inspired to finally make a cowl snorkel. There's a good amount of water crossing where Im moving next year, so why not.
About 3 feet of straight, black pvc 3 inch pipe.
One sharp 90 degree elbow
One normal 90 degree elbow
One factory air tube elbow (from the air cleaner to the TB)
I cut a hole in the cowl, and a hole in the filter box, and figured out the best way to put it all together. Then I siliconed a seal for the air box.
Already, I can feel a HP increase, and I can hear the air it is sucking.
I still need to block off and seal the front of the air box.