Ok guys got some questions about my 450. Getting ready to take it for a ride to set up suspension and work some bugs out. Have a question about the air box. The snorkel behind the battery has only two passages. Is there a modification for the air box? The jetting that was in the bike is 48 pilot stock needle OBDUT and in the 4th slot. 168 main jet. 160 is stock. Came with FMF titanium complete system with quiet core inside muffler. Also came with some needles. I'm guessing that they are JD because of the color code on the tips. I have one blue and one red. Thanks for any advice.