As most of you know; we manufacture an intake for the 10-current YZ450F-FX. It is housed under the OEM upper schroud and is very calm in the noise department. We have had great success with the 100's that we have sold. They are $110.00 USD and work well.
Over the last 3 seasons we have sold this style intake, and I have had three customers tell me that the top of the engine packed full of snow and choked off the engine. In the 100's of hours of riding here in Colorado and Wyoming we have never experienced this. I have however had carb/throttle body icing happen two times last season on the YZ450FX's. I assume because they are breathing moist air from the engine melt under the upper shrouds. For the thousands of hours logged on this intake and very few negative days, I will still state I prefer our set up over the CR.
I can say this because I just took a 2016 YZ450FX in on trade that had a NEW CR intake in the box that came with it. I did the install of the CR so I can test it and know for sure I am selling the correct products to my customers.
The install was easy it does take more time due to cutting the big hole in the upper schroud and ruining it for going back to wheels in the summer. That is a $100 piece of plastic. Their cage and tubing is high quality. The mounting flange with IAT sensor mounting is spot on, and a perfect fit.
Riding it was a different story. I could not believe how loud it was. I felt like I was 16 and just installed a set of glass packs on my 68' camaro. It sounded GOOD!!!! After a few hours on the bike I was ready to wear ear plugs. The other thing I do not like is the metal cage sticking up within nut racking range of the seat. Two weeks ago I raced a snow cross race and landed the 40' table top out in the flats, racking my self badly. If I would have been on this bike I do not know how bad that would have been.
The great part about this intake is that you should NEVER have snow choke out the engine in any circumstance, and you may not ever get throttle body icing.