There were a lot of B-series performance parts out there but with a CR-V this old, I wouldn't bother since performance parts for the CR-V were scarce to begin with, and the B-series is an outdated engine so parts availability won't be available in the future as they were in the past. There was a modification where you could use a cylinder head from a VTEC B-series engine (from an Integra GSR, I believe?) and make some other changes, but it would probably cost more than the CR-V is worth. (A JDM engine from a GSR is thousands of dollars.) Jackson Racing used to make superchargers for Honda engines, and there were probably some turbo kits also. At this point, you'd probably have to do a lot of custom fabrication to put a system together. I know for someone who routinely builds engine, a hopped-up B-series would be a fun build but for an ordinary shmuck like me, it would be an expensive exercise in frustration.
Those aftermarket intakes are pretty much a waste of money--your stock intake will work the same as any of them, along with sucking the cooler air from inside the fender vs. the hot engine bay. The K&Ns that are popular don't have filters as good as the stock Honda air filter, so they let larger dust particles get into the engine.
Chip modifications and tunes aren't worth the money on a stock engine. It's when you have the engine modified that they make more sense, as a tuning shop can get the most out of your custom build. (And that's avoiding the "scam" chips that
@Lochinvar mentioned earlier.)
At least you are ahead of the game in terms of having the later B20Z engine vs. the B20B4 in the '97 and '98 CR-Vs, which is a very weak engine. I always felt the CR-V, heavy as it is, should have come with a V6 engine from the day it was introduced to the US...the 4-cylinders are woefully underpowered, even in newer generations, trying to push around 3,200+ pounds. In fact, right in your neck of the woods, my '09 has struggled on some of Utah's unpaved roads (I'm thinking Shaffer Canyon and BLM146/Potash Rd., where the extra power would have been useful).