Tyler, check out... http://yfz450.theatvchannel.com/ i used this site to research all the stuff i did to mine. i deffly recommend picking up an FCI intake. they run about $200 but make a ridiculous difference with throttle response. with the FCI you can totally remove the airbox or still use it. the carbs are super easy to take apart. just alil pain to actually take outta the machine. carbs are really similar to the warrior carbs. jus with installing the jet kit, intake and slip on, itll make it feel like a totally different quad. a friend of mine said it best. it feels like it rides you instead of you riding it..