If you're planning on doing a mod like the OSCAI, where you disconnnect the resonator tube below the snorkel and run a flexible hose to it, I found a better alternative:

2" ABS pipe, straight and elbows, available in the Plumbing section of Lowe's Home Improvement store. The pipe is a perfect fit to the snorkel tube, and you can use the existing 90 degree elbow, along with a second elbow, to run the opening out the bottom of your car:

Here's the view from the top:



Here's the view from below:



Since the two elbows are easily removable, you can take them off whenever it rains (like here in Florida), and put them back when it stops.

Anyway, I did it mainly out of curiosity, and decided afterwards to put the resonator tube back where it was after trying it out.

 

That would get ripped right off the car

 

Probably, but I keep it rolled up to where it only sticks out half as much. I rolled it down solely for the photo op.

Now, I initially had the opening routed to come out behind the front bumper, but that would have necessitated cutting holes in the undercover, which I did not want to do.

 

hmmm....question...why only two inches??

 

Because the exterior of the 2" pipe fits perfectly inside the snorkel tube. The actual dimensions are larger than 2"

Even if you used a wider tube, the bottleneck is still the snorkel tube...