Last weekend I removed the stock resonator and boy was it a lot of piping.
Basically what I did was, I first used the jack that comes with the car and jacked up the front driver's side. Removed driver's side wheel. then I removed the screws and clips under the front bumper and on the fender liner. Don't take them all off but only the ones needed to open it up a little. then you take out the battery (which is easy). There is 1 bolt that is really hard to get to, but in order to get to it, you need to take off the hose piece that comes down from the engine bay. the 2 pieces are connected somewhat like lego blocks. They fit together well so you need to take a flat head and pry them. Lastly, you stick your hand in the gap between the bumper and resonator and unscrew the bolt.
I didn't realize until a friend told me that from the stock intake, there is a tube going down into the resonator box, which is about the size of those soda boxes that hold like 18 or 20 cans. anyway, after hitting the resonator box, there is another tube going up towards the engine bay and it stops about where the battery is. So what this means is, the stock intake system pulls air from INSIDE the engine bay. I don't think a lot of people know this.
Conclusion
1. Intake resonator is freakin' huge (see pic above)
2. Stock intake pulls air from inside the engine bay
3. Resonator and tubes can be taken out without removing front bumper
4. I predict that those of us with SRI's will benefit a lot from taking out the resonator because it opens up a path of cold air into where the SRI is.